10-Letter Words Starting with I

All 435 ten-letter words that start with I: page 1 of 2

IA

• iatrogenic13adj. Induced by the words or actions of the physician or by medical...

IC

• icebreaker18n. A ship designed to break through ice so that it, or other ships coming...
• ichthyosis21n. Any of a group of genetic skin disorders characterized by dry...
• iconically17adv. In a way or to an extent that is iconic.
• iconoclasm16n. The belief in, participation in, or sanction of destroying religious...
• iconoclast14n. One who destroys religious images or icons, especially an opponent of...
• iconoscope16n. An early television camera having a mosaic of photoactive cells.

ID

• idealistic13adj. Of or pertaining to an idealist or to idealism.
• ideational11adj. Pertaining to the formation of ideas or thoughts of objects not...
• idempotent15adj. (said of a function) Such that, when performed multiple times on the...
• identifier14n. Someone who identifies; a person who establishes the identity of...
• ideologist12n. One who theorizes or idealizes; one who advocates the doctrines of...
• idiopathic18adj. Of, relating to, or designating a disease or condition having no known...
• idolatrous11adj. Partaking in idolatry; worshipping idols or false gods.

IF

• ifosfamide19n. A particular drug used in chemotherapy.

IG

• ignimbrite15n. A deposit left by a pyroclastic flow from a volcano, consisting of ash...
• ignorantly14adv. In an ignorant manner.

IL

• iliotibial12adj. Of or pertaining to both the ilium and the tibia.
• illegality14n. The state of being illegal.
• illiteracy15n. The inability to read and write.
• illiterate10adj. Unable to read and write.
• illuminant12n. Something that illuminates.
• illuminate12v. To shine light on something.
• illustrate10v. To clarify something by giving, or serving as, an example or a...

IM

• imaginable15adj. Able to be imagined; conceivable.
• imbalanced17adj. Experiencing an imbalance; out of balance.
• imbecility19n. The quality of being imbecile; weakness; feebleness, especially of mind.
• imbibition16n. The act of imbibing.
• imbricated17adj. Overlapping, like scales or roof-tiles; intertwined.
• imipramine16n. A synthetic compound (trademark Tofranil) used to treat depression.
• immaculate16adj. Having no blemish or stain; absolutely clean and tidy.
• immanently17adv. In an immanent manner.
• immaterial14adj. Having no matter or substance; incorporeal.
• immaturely17adv. Giving an appearance of immaturity; childishly.
• immaturity17n. Youth; the condition of being immature or not fully grown.
• immemorial16adj. That is beyond memory; ancient.
• imminently17adv. In an imminent manner; liable to happen immediately or very soon.
• immiscible18adj. Of two or more liquids that are not mutually soluble: unmixable.
• immobility19n. The quality of not moving.
• immobilize25v. To render motionless; to stop moving or stop from moving.
• immoderate15adj. Not moderate; excessive.
• immodestly18adv. In an immodest manner.
• immolation14n. The act of immolating, or the state of being immolated.
• immoralist14n. An advocate of immorality.
• immorality17n. The state or quality of being immoral; vice.
• immortally17adv. In an immortal manner.
• immortelle14n. Any of various papery flowers, often dried and used as decoration.
• immunizing24adj. That immunizes.
• immunoblot16n. A blot used in western blot analysis.
• immunology18n. The branch of medicine that concerns the body's immune system.
• impairment16n. The result of being impaired.
• impalement16n. The act of torturing or executing someone by impaling them on a sharp...
• impalpable18adj. Incapable of being touched or felt; incorporeal, intangible.
• impassable16adj. Incapable of being passed over, crossed, or negotiated.
• impassible16adj. Unable to feel emotion; impassive.
• impatience16n. The quality of being impatient; lacking patience; restlessness and...
• impeccable20adj. Perfect, without faults, flaws or errors.
• impeccably23adv. In a perfect or flawless manner.
• impediment17n. A hindrance; that which impedes or obstructs progress; impedance.
• impenitent14adj. Not penitent; specifically (Christianity), not repenting of one's sins...
• imperative17adj. Essential; crucial; extremely important.
• imperially17adv. In an imperial manner.
• imperiling15n. The act of placing something in peril; endangerment.
• impersonal14adj. Not personal; not representing a person; not having personality.
• impervious17adj. Unaffected or unable to be affected by something.
• implacable18adj. Not able to be placated or appeased.
• implacably21adv. In an implacable manner.
• implicitly19adv. In an implicit or implied manner.
• impolitely17adv. In an impolite manner; uncivilly; rudely.
• importable16adj. Capable of being imported.
• importance16n. The quality or condition of being important or worthy of note.
• imposingly18adv. In an imposing manner.
• imposition14n. The act of imposing, laying on, affixing, enjoining, inflicting...
• impossible16adj. Not possible; not able to be done or happen.
• impossibly19adv. Not possibly; in an impossible manner.
• impotently17adv. In an impotent manner.
• impounding16n. An act of impoundment.
• impoverish20v. To make poor.
• impregnate15v. To cause to become pregnant.
• impresario14n. A manager or producer in the entertainment industry, especially music...
• impression14n. The indentation or depression made by the pressure of one object on or...
• impressive17adj. Making, or tending to make, a positive impression; having power to...
• imprimatur16n. An official license to publish or print something, especially when...
• imprinting15n. Any kind of phase-sensitive learning (learning occurring at a...
• improbable18adj. Not likely to be true.
• improbably21adv. In an improbable manner; without probability.
• improperly19adv. In an improper manner; not properly.
• improvable19adj. Capable of being improved.
• improvised18adj. Created by improvisation; impromptu; unrehearsed.
• improviser17n. One who improvises.
• imprudence17n. The quality or state of being imprudent; lack of prudence, caution...
• impudently18adv. In an impudent manner; with unblushing effrontery; insolently.
• imputation14n. The act of imputing or charging; attribution; ascription.

IN

• inaccuracy19n. The property of being inaccurate; lack of accuracy.
• inaccurate14adj. Mistaken or incorrect; not accurate.
• inactivate15v. To make inactive.
• inactivity18n. The quality of being inactive; idleness; passiveness.
• inadequacy25n. The state of being inadequate.
• inadequate20adj. Not adequate; lacking in quality or quantity required; insufficient for...
• inapposite14adj. Inappropriate, not suitable for the situation.
• inarguable13adj. Not arguable; certain, incontestable or incontrovertible.
• inarguably16adv. Certainly; without the possibility of argument or debate.
• inartistic12adj. Lacking in artistic ability.
• inaugurate11v. To induct (someone) into a dignity or office with a formal ceremony.
• inbreeding14n. Breeding between members of a relatively small population, especially...
• incapacity19n. The lack of a capacity; an inability.
• incautious12adj. Careless, reckless, not exercising proper caution.
• incendiary16adj. Capable of, or used for, or actually causing fire.
• incestuous12adj. Pertaining to or engaging in incest.
• inchoative18adj. Initial; as yet unformed; inchoate.
• incidental13adj. Loosely associated; of limited relevance except indirectly; only...
• incinerate12v. To destroy by burning.
• incisional12adj. Relating to an incision.
• incisively18adv. In an incisive manner.
• incitement14n. A call to act; encouragement to act, often in an illegal way.
• incivility18n. The state of being uncivil; lack of courtesy; rudeness in manner.
• includible15adj. Suitable or available for inclusion.
• incoherent15adj. Not making logical sense; not logically connected or consistent.
• incomplete16adj. Not complete; not finished.
• inconstant12adj. Not constant; wavering.
• incrassate12adj. Made thick or thicker; swelled out at some particular part, like the...
• increasing13adj. On the increase.
• incredible15adj. Too implausible to be credible; beyond belief.
• incredibly18adv. In an incredible manner; not to be believed.
• incubation14n. Sitting on eggs for the purpose of hatching young; a brooding on, or...
• incumbency21n. The state of being incumbent.
• incunabula14n. Early printed books.
• incurrence14n. The act of incurring something.
• indapamide16n. A particular sulphonamide diuretic drug.
• indecently16adv. In an indecent manner.
• indecision13n. The inability to decide on a course of action, especially if two or...
• indecisive16adj. Of a person, not decisive, not marked by promptness or decision.
• indecorous13adj. Improper, immodest, or indecent.
• indefinite14adj. Without limit; forever, or until further notice; not definite.
• indelicacy18n. The condition of being indelicate.
• indelicate13adj. Improper or immodest.
• indemnitee13n. A person protected by, or benefiting from, an indemnity.
• indemnitor13n. One who indemnifies.
• indentured12adj. Subject to an indenture.
• indexation18n. The adjustment of an economic variable (such as a salary) according to...
• indication13n. An act of pointing out or indicating.
• indicative16adj. Serving as a sign, indication or suggestion of something.
• indictable15adj. Subjecting one to an indictment. (of an act).
• indictment15n. An official formal accusation for a criminal offence, or the process by...
• indigenous12adj. Native to a land, especially before colonization.
• indirectly16adv. In an indirect manner.
• indiscreet13adj. Not discreet; lacking in discretion.
• indiscrete13adj. Not discrete mathematically.
• indisposed14adj. Mildly ill.
• indistinct13adj. Not clearly defined or not having a sharp outline; faint or dim.
• individual15n. A person considered alone, rather than as belonging to a group of...
• indolently14adv. In an indolent manner.
• inducement15n. An incentive that helps bring about a desired state.
• inducingly17adv. So as to induce.
• inductance15n. The property of an electric circuit by which a voltage is induced in it...
• indulgence14n. The act of indulging.
• indumentum15n. A surface covering of any kind of trichomes, e.g. hairs, scales.
• induration11n. Hardness.
• industrial11adj. Of or relating to industry, notably manufacturing.
• indwelling15n. A dwelling within, especially lodgement or habitation in the mind or...
• inebriated13adj. Behaving as though affected by alcohol including exhilaration, and a...
• inefficacy23n. The condition of being ineffective.
• inelegance13n. The state or quality of being inelegant; lack of grace, refinement...
• ineligible13adj. Not eligible; forbidden to do something.
• ineptitude13n. The quality of being inept.
• inequality22n. A condition or state (of social, cultural, or legal matters) that is...
• inevitable15adj. Impossible to avoid or prevent.
• inevitably18adv. In a manner that is impossible to avoid or prevent.
• inexistent17adj. Nonexistent.
• inexorable19adj. Impossible to prevent or stop; inevitable.
• inexorably22adv. In an inexorable manner; without the possibility of stopping or...
• inexpertly22adv. In an inexpert manner.
• infallible15n. A person who, or an object or process that, is taken as being...
• infallibly18adv. In an infallible manner.
• infamously18adv. In an infamous manner.
• infarction15n. The process which causes an infarct.
• infatuated14adj. Foolishly or unreasoningly fond of, attracted to or in love with...
• infeasible15adj. Not feasible.
• infectious15adj. Caused by an agent that enters the host's body (such as a bacterium...
• inferiorly16adv. In an inferior manner.
• infernally16adv. In an infernal manner.
• infidelity17n. Unfaithfulness in a marriage or an intimate (sexual or romantic)...
• infighting18n. Fighting or quarreling among the members of a single group or side.
• infiltrate13v. To surreptitiously penetrate, enter or gain access to.
• infinitely16adv. In an infinite manner; as of anything growing without bounds; endlessly.
• infinitive16n. The infinitive mood or mode (a grammatical mood).
• infinitude14n. The state or quality of being infinite or having no limit.
• inflatable15adj. Able to be inflated or blown up.
• inflection15n. The linguistic phenomenon of morphological variation, whereby words...
• inflexible22adj. Not flexible; not capable of bending or being bent.
• inflexibly25adv. With a firmness that resists all importunity or persuasion; in an...
• infliction15n. The act of inflicting or something inflicted; an imposition.
• infliximab24n. An immunosuppressive drug (trademark Remicade) administered by...
• influenced16adj. Subject to an effect caused by a person or thing outside of the...
• influencer15n. A person who or a thing which influences.
• informally18adv. In an irregular or informal manner; without the usual forms.
• informatic17adj. Of or pertaining to informatics and information science, the processing...
• infosphere18n. The sphere of digital information.
• infraction15n. A minor offence, petty crime.
• infrasonic15adj. Having frequencies below the human audible range.
• infrasound14n. Sound waves having a frequency below the human audible range (below...
• infrequent22adj. Not frequent; not happening frequently.
• infringing15adj. Violative.
• infuriated14adj. Extremely angry; furious.
• ingestible13adj. Capable of being ingested.
• inglorious11adj. Ignominious; disgraceful.
• ingratiate11v. To bring oneself into favour with someone by flattering or trying to...
• ingredient12n. One of the substances present in a mixture, especially food.
• ingressive14adj. Going or directed inward, entering.
• inhabitant15n. Someone or thing who lives in a place.
• inhalation13n. The act of inhaling; inbreathing.
• inharmonic17adj. Lacking harmony; discordant; dissonant.
• inherently16adv. In an inherent way; naturally, innately.
• inhibiting16adj. Inhibitive.
• inhibition15n. The act of inhibiting.
• inhibitive18adj. That inhibits.
• inhibitory18adj. That inhibits.
• inhumanely18adv. In an inhumane manner.
• inhumanity18n. The lack of compassion.
• inhumation15n. The act of burial.
• inimitable14adj. Beyond imitation, surpassing all others; matchless.
• inimitably17adv. In an inimitable manner.
• iniquitous19adj. Morally objectionable; sinful, wicked.
• initialing11n. The act of adding one's initials to a document rather than signing.
• initialism12n. A term formed from the initial letters of several words or parts of...
• initialize19v. To assign initial values to something.
• initiation10n. The act of initiating, or the process of being initiated or introduced.
• initiative13adj. In which voter initiatives can be brought to the ballot.
• initiatory13adj. Of or pertaining to initiation.
• injectable21adj. Capable of being (or designed to be) injected.
• injunction19n. The act of enjoining; the act of directing, commanding, or prohibiting.
• injunctive22n. A verbal mood in Sanskrit characterized by secondary endings but no...
• innateness10n. The condition of being innate.
• innervated14adj. Supplied with nerves; having fibers distributed to a part of the body.
• innocently15adv. In an innocent manner.
• innominate12adj. Having no name, nameless, unnamed; anonymous.
• innovating14adj. Innovative.
• innovation13n. The act of innovating; the introduction of something new, in customs...
• innovative16adj. Characterized by the creation of new ideas or inventions.
• innovatory16adj. Producing new ideas or products.
• innumeracy17n. Lack of numeracy; low numeracy.
• innumerate12adj. Lacking numeracy.
• innumerous12adj. Not capable of being counted or numerated; indefinitely numerous.
• inoperable14adj. Incapable of being successfully operated on.
• inordinate11adj. Excessive; unreasonable or inappropriate in magnitude.
• inpainting13n. A technique in which missing or damaged portions of images are...
• inquietude20n. A condition of being restless, uneasy or nervous.
• inquisitor19n. A person who inquires, especially searchingly or ruthlessly.
• insanitary13adj. Of or pertaining to a lack of sanitation; unsanitary, dirty, unhealthy.
• insatiable12adj. Not satiable; incapable of being satisfied or appeased; very greedy.
• insatiably15adv. In an insatiable manner.
• insecurely15adv. In an insecure manner.
• insecurity15n. A lack of security; uncertainty.
• inseminate12v. To sow (to disperse or plant seeds).
• insensible12adj. Unable to be perceived by the senses.
• insensibly15adv. In an insensible manner; without feeling or noticing something.
• insentient10adj. Having no consciousness or feeling; inanimate.
• insertable12adj. Able to be inserted; able to be put into something else.
• insightful17adj. Possessing insight; percipient.
• insipidity16n. The condition of being insipid; insipidness.
• insistence12n. The state of being insistent.
• insolation10n. The incident radiant energy emitted by the sun which reaches a unit...
• insolently13adv. In an insolent manner.
• insolvency18n. The condition of being insolvent; the state or condition of a person...
• insouciant12adj. Casually unconcerned; carefree, indifferent, nonchalant.
• insourcing13n. The obtaining of goods or services using existing in-house resources or...
• inspecting15n. An act of inspection.
• inspection14n. The act of examining something, often closely.
• instalment12n. Australia, UK, and Canada standard spelling of installment.
• instancing13n. The creation of an instance of something.
• instigator11n. A person who intentionally instigates, incites, or starts something...
• instilling11n. The process by which something is instilled.
• instructor12n. One who instructs; a teacher.
• instrument12n. A device used to produce music.
• insularity13n. The quality or property of being insular.
• insulating11adj. That insulates.
• insulation10n. The act of insulating; detachment from other objects; isolation.
• insulative13adj. Serving to insulate.
• insulinoma12n. A tumour of the pancreas that secretes insulin.
• insurgence13n. An uprising or rebellion; an insurrection.
• insurgency16n. Rebellion; revolt; the state of being insurgent.
• inswinging15adj. Swinging inward.
• intactness12n. The condition of being intact.
• intangible13adj. Incapable of being perceived by the senses; incorporeal.
• integrable13adj. Able to be integrated.
• integrally14adv. In an integral manner.
• integrated12adj. Composed and coordinated to form a whole.
• integrator11n. A person who, or a device which, integrates.
• integument13n. A shell or other outer protective layer.
• intentions10n. Desire to court, marry, date, woo or sleep with someone.
• interactor12n. One who interacts.
• interaural10adj. Describing the differences between the reception of sound (especially...
• interbasin12adj. Between river basins.
• interbrand13adj. Between brands (distinctive products or services).
• interbreed13v. To breed or reproduce within an isolated community.
• intercaste12adj. Between different castes.
• interchain15adj. Between chains (of a polymer etc).
• interclass12adj. Between classes.
• intercloud13v. To shut within clouds.
• interested11adj. Having or showing interest (attention or curiosity).
• interfaith16adj. Involving members of different religions.
• interferon13n. Any of a group of glycoproteins, produced by the immune system, that...
• interframe15n. A video frame which is compressed to express only the change from a...
• intergenic13adj. Describing the noncoding sections of nucleic acid between genes.
• intergrade12v. To pass or change from one state to another by steps or stages.
• intergroup13adj. Taking place between groups, especially between social groups.
• interhouse13adj. Between houses.
• interictal12adj. Between episodes, attacks, or paroxysms; as (usually, more...
• interiorly13adv. In the interior part; internally; inwardly.
• interlaced13adj. Synonym of gauntleted (“having overlapping parallel rail tracks”).
• interlayer13adj. Situated between layers.
• interleave13v. To insert (pages, which are normally blank) between the pages of a book.
• interlocal12adj. Between localities.
• interloper12n. One who interferes, intrudes, or gets involved where not welcome...
• intermarry15v. To marry a member of another group, social stratum, or religion.
• intermedia13n. Interdisciplinary activities between media, such as those between...
• intermezzo30n. A short piece of music or act in the interval of the main spectacle; a...
• intermixed20adj. Mixed together.
• intermodal13adj. Relating to more than one mode of transport.
• internally13adv. In an internal manner; within or inside of external limits; in an inner...
• internment12n. The state of being imprisoned, usually without trial.
• internodal11adj. Of or pertaining to an internode.
• internship15n. A job taken by a student in order to learn a profession or trade.
• interphase15n. The stage in the life cycle of a cell between two successive mitotic or...
• interphone15n. Synonym of intercom.
• interplate12adj. Between tectonic plates.
• interposer12n. One who interposes.
• interrater10adj. Between raters.
• interspace14n. A space or interval between two things; an interstice.
• interstage11n. The structure, generally containing mechanical components and...
• interstate10adj. Of, or relating to two or more states.
• interstice12n. A small opening or space between objects, especially adjacent objects...
• intertidal11adj. Pertaining to the part of a shore between the high water and the low...
• intertitle10n. A piece of static text inserted into the film to provide context or...
• intertrigo11n. Chafing or dermatitis occurring between two folds of skin.
• intertwine13v. To twine (things) together.
• interurban12adj. Of, pertaining to, involving or joining two or more urban centres.
• intervener13n. One who intervenes.
• intervenor13n. One who intervenes, especially in a legal sense.
• interweave16v. To combine (things) through weaving.
• interzonal19adj. Between zones.
• intestinal10adj. Relating to the intestines.
• intimately15adv. In an intimate manner.
• intimation12n. A hint; an indirect suggestion.
• intimidate13v. To make timid or afraid; to cause to feel fear or nervousness; to...
• intolerant10adj. Unable or indisposed to tolerate, endure or bear.
• intonation10n. The rise and fall of the voice in speaking.
• intoxicant19n. Something which intoxicates; an intoxicating agent.
• intoxicate19v. To stupefy by doping with chemical substances such as alcohol.
• intraclass12adj. Within a class.
• intragenic13adj. Within a gene.
• intragroup13adj. Taking place within a group, especially within a social group.
• intralipid13n. An intravenous injection of a fat emulsion.
• intramural12adj. Within the walls; within one institution, particularly a school.
• intranasal10adj. Within the nose.
• intraparty15adj. Occurring within a political party.
• intraplate12adj. Taking place within a single tectonic plate.
• intrasquad20adj. Within a team.
• intrastate10adj. Within a sovereign state or country.
• intravital13adj. Within or among living cells; for example, subcutaneous.
• intrepidly16adv. In an intrepid manner.
• intriguing12adj. Causing a desire to know more; mysterious.
• introduced14adj. Not native to a location; brought from another place.
• introducer13n. Someone or something that introduces.
• introspect14v. To engage in introspection.
• intubation12n. The introduction of a tube into an organ to keep it open, as into the...
• inundation11n. The act of inundating; an overflow; a flood; a rising and spreading of...
• invalidate14v. To make invalid (especially in to contract law).
• invalidity17n. The state of being invalid; lack of validity.
• invaluable15adj. Having great or incalculable value.
• invariable15adj. Not variable; unalterable; uniform; always having the same value.
• invariably18adv. Every time; always, without change and without exception.
• invariance15n. The property of being invariant.
• invasively19adv. In an invasive manner.
• inveighing18n. The act of one who complains or censures.
• invertible15adj. Capable of being inverted or turned.
• investable15adj. Able to be invested; ready for investment; liquid.
• investible15adj. That can be invested.
• investment15n. The act of investing, or state of being invested.
• inveterate13adj. Firmly established from having been around for a long time; of long...
• invigorate14v. To impart vigor, strength, or vitality to.
• invincible17adj. Impossible to defeat, destroy, or kill; too powerful to be defeated or...
• invincibly20adv. In an invincible manner; unconquerably; insuperably.
• inviolable15adj. Not violable; not to be infringed.
• inviolably18adv. In an inviolable manner; without violation or violence of any kind.
• invitation13n. The act of inviting; solicitation; the requesting of a person's company.
• invitingly17adv. In an inviting manner; so as to attract; attractively.
• invocation15n. The act or form of calling for the assistance or presence of some...
• involucral15adj. Pertaining to, having, or similar to an involucrum or involucre.
• involution13n. Entanglement; a spiralling inwards; intricacy.
• involutive16adj. Being an involution.
• inwardness14n. The characteristic of being inward or directed towards the inside.

IO

• ionization19n. Any process that leads to the dissociation of a neutral atom or...
• ionosphere15n. The part of the Earth's atmosphere beginning at an altitude of about 50...
• ionotropic14adj. Of, pertaining to, or exhibiting ionotropy.

IP

• ipilimumab18n. A human monoclonal antibody being developed as a drug to activate the...

IR

• irbesartan12n. An angiotensin II receptor antagonist used mainly for the treatment of...
• iridescent13adj. Producing a display of lustrous, rainbow-like colors; prismatic.
• irinotecan12n. A particular drug used in chemotherapy.
• ironically15adv. In an ironic manner; in a way displaying irony.

Questions about these words

How many ten-letter words that start with I are there?

Word.ws lists 435 ten-letter words that start with I, plus 1,520 rare ones.

What are common ten-letter words that start with I?

individual, interested, investment, impossible, introduced, industrial, increasing and incredible.

Which of the ten-letter words that start with I has the highest letter score?

intermezzo scores 30 points with the standard letter tile values.

Related word lists

• 10-Letter Words
• Words That Start with I
• 9-Letter Words Starting with I
• 11-Letter Words Starting with I
• Q Words Without U