Word.ws English Dictionary

9-Letter Words Starting with U

There are 387 nine-letter words that start with U on Word.ws, from ubiquinol to uttermost. The most common are universal, unlimited, uncertain, underwear and unrelated.

Meanings from Wiktionary. Not an official Scrabble, Words With Friends or Wordle word list.

All 387 nine-letter words that start with U

UB

  • ubiquinol20n. A certain benzoquinol, the reduced product of ubiquinone, also called...
  • ubiquitin20n. Any of a class of small protein, or polypeptide, present in the cells...

UF

UL

  • ulcerated12adj. Affected with ulcers.
  • ultimatum13n. A final statement of terms or conditions made by one party to another...
  • ultrabook15n. A very lightweight and thin portable computer the areal size of a...
  • ultracold12adj. Of a temperature close to absolute zero, especially one at which...
  • ultrafast12adj. Very fast, or of very short duration; especially concerning events that...
  • ultrafine12adj. Of particles, very fine.
  • ultrapure11adj. Extremely pure; of supreme purity.
  • ultrarich14adj. Extremely rich; very wealthy.
  • ultrasoft12adj. Extremely soft; of utmost softness.
  • ultrathin12adj. Extremely thin; of utmost thinness.
  • ultrawide13adj. Extremely wide.
  • ululating10n. An act of ululation.
  • ululation9n. The act of ululating; a long, loud, wavering cry or howl.

UM

  • umbilical15adj. Of, or relating to, the navel (umbilicus) or the umbilical cord.
  • umbilicus15n. A navel.
  • umpteenth16adj. Occurring in a relatively large but unspecified position in a sequence.

UN

  • unabashed15adj. Not disconcerted or embarrassed.
  • unadapted13adj. Not adapted.
  • unadopted13adj. Not adopted.
  • unadorned11adj. Having no additional decoration or embellishment; plain and simple.
  • unadvised14adj. Not having received advice.
  • unaligned11adj. Not aligned.
  • unalloyed13adj. Not alloyed; not in mixture with other metals; pure.
  • unaltered10adj. Remaining in its initial state; not changed.
  • unamended13adj. Without amendments.
  • unamusing12adj. Not amusing.
  • unanimity14n. The condition of agreement by all parties, the state of being unanimous.
  • unanimous11adj. Based on unanimity, assent or agreement.
  • unapplied14adj. That has not been applied.
  • unarmored12adj. Not armored; not wearing armor.
  • unashamed15adj. Feeling or showing no shame, embarrassment or remorse.
  • unaudited11adj. Not audited.
  • unavenged14adj. Not avenged.
  • unbalance13v. To cause to be out of balance.
  • unbanning12n. The removal of a ban.
  • unbeatens11n. Those who have not been defeated in a contest.
  • unbeknown18adj. Not beknown.
  • unbending13adj. Inflexible and not yielding.
  • unbinding13n. The release or freeing of something that was bound.
  • unblended13adj. In a pure state; not mixed with other substances.
  • unblessed12adj. Not blessed.
  • unblinded13adj. Not having been blinded.
  • unblocked18adj. Not blocked (in various senses).
  • unblocker17n. One who, or that which, unblocks.
  • unblurred12adj. Not blurred.
  • unbounded13adj. Having no boundaries or limits.
  • unbranded13adj. Not branded; lacking a brand.
  • unbridled13adj. Not fitted with a bridle.
  • unbrushed15adj. Not brushed.
  • unbuckled18adj. Not buckled.
  • unbundled13adj. Not bundled.
  • uncannily14adv. In an uncanny manner.
  • uncapable15adj. Not capable; incapable.
  • uncapping16n. Wax removed from a honeycomb.
  • unceasing12adj. Continuous; continuing indefinitely without stopping.
  • uncertain11adj. Not certain; unsure.
  • unchained15adj. Free from chains or fetters; unencumbered.
  • unchanged16adj. Not changed or altered; remaining in an original state.
  • uncharged16adj. Not carrying an overall or net electric charge.
  • uncharted15adj. Not surveyed or mapped.
  • unchecked21adj. Unrestrained, not held back.
  • unclaimed14adj. Not claimed.
  • unclasped14adj. Not clasped.
  • uncleaned12adj. That has not been cleaned; dirty or foul; uncleansed.
  • uncleared12adj. Not cleared.
  • unclearly14adv. In an unclear manner.
  • unclimbed16adj. Not climbed.
  • unclipped16adj. Not clipped.
  • uncloaked16adj. Not cloaked.
  • unclogged14adj. Not clogged; without a blockage or obstruction.
  • unclothed15adj. Not wearing clothes; nude or naked; with the clothes removed; stripped.
  • unclouded13adj. Not clouded.
  • unclutter11v. To eliminate clutter from.
  • uncoating12n. A process in which the viral capsid of a virus is removed, leading to...
  • uncoerced14adj. Not brought about by or subject to coercion or force.
  • uncoiling12n. The act of something being uncoiled.
  • uncolored12adj. Having no color; not treated with a dye or other color.
  • uncomfort16n. The absence or lack of comfort; comfortlessness.
  • unconcern13n. Lack of interest or care; indifference or apathy.
  • uncorking16n. The removal of a cork from a bottle or similar.
  • uncorrupt13adj. Not corrupt; honest, fair.
  • uncounted12adj. Not counted.
  • uncoupled14adj. Not coupled to something; disconnected; detached.
  • uncovered15adj. Not covered or protected from the weather, etc.
  • uncracked18adj. Not cracked (in various senses).
  • uncreated12adj. Not having been created, thus not existing.
  • uncropped16adj. Not having been cropped or cut.
  • uncrossed12adj. Not crossed (in various senses).
  • uncrowded16adj. Not crowded.
  • uncrowned15adj. Not crowned; not yet crowned.
  • uncrushed15adj. Not crushed.
  • uncurable13adj. Incurable.
  • undamaged14adj. Not damaged, harmed or injured.
  • undatable12adj. Not able to be dated; that may be not be ascribed a date (or age).
  • undaunted11adj. Showing courage and resolution.
  • undecided14adj. Open and not yet settled or determined.
  • undefiled14adj. Free from stain, blemish, evil or corruption; immaculate; uncorrupted.
  • undefined14adj. Lacking a definition or value.
  • undeleted11adj. Not having been deleted.
  • underaged12adj. Underage; being or occurring below the legal age for a given activity.
  • underbite12n. A malocclusion in which the lower teeth extend past the upper ones.
  • underbody16n. The underparts of a bird or animal.
  • underboss12n. An assistant to the boss of a crime family.
  • underbust12adj. Below the bust.
  • undercard13n. A list of minor or supporting contests printed on the same bill as the...
  • undercity15n. A subterranean city.
  • undercoat12n. A layer of short hairs underneath the longer ones of an animal's fur.
  • undercook16v. To cook insufficiently.
  • underdone11adj. Insufficiently cooked; undercooked.
  • underfill13v. To fill with an insufficient amount.
  • underflow16n. A current flowing below the surface.
  • underfoot13adj. Situated under one's foot or feet.
  • underfund14v. To provide insufficient funds (for).
  • undergird12v. To strengthen, secure, or reinforce by passing a rope, cable, or chain...
  • underglow14v. To beam or radiate too little light; to glow insufficiently.
  • undergrad12n. An undergraduate.
  • underhand14adj. Secret; clandestine.
  • underhill13adj. (of a road, track or other path) passing along the foot of a hill.
  • underhood14adj. Beneath the hood of a vehicle.
  • underhook17n. A clinch hold performed by putting an arm under the opponent's arm, and...
  • underlaid11adj. Undersexed; sexually frustrated.
  • underline10n. A line placed underneath a piece of text in order to provide emphasis...
  • underling11n. A subordinate, or person of lesser rank or authority.
  • undermine12v. To dig underneath (something), to make a passage for destructive or...
  • underpaid13adj. Getting too little financial compensation for one's work.
  • underpass12n. A passage, especially for pedestrians, that crosses underneath a road...
  • underplay15n. The act of underplaying.
  • underrate10v. To underestimate; to make too low a rate or estimate.
  • underripe12adj. Insufficiently ripe for harvesting or eating.
  • undersell10v. To sell goods for a lower price than a competitor.
  • undershot13adj. Powered by water flowing from below. (of a water wheel).
  • underside11n. The side that is below or underneath, the bottom.
  • undersize19adj. Smaller than normal, undersized.
  • undersold11adj. Sold with insufficient enthusiasm.
  • undertail10adj. Beneath a tail.
  • undertake14v. To take upon oneself; to start, to embark on.
  • undertone10n. An auditory tone of low pitch or volume.
  • underused11adj. Used less than normal or desirable.
  • undervolt13n. A significant drop in voltage.
  • underwear13n. Clothes worn next to the skin, underneath outer clothing.
  • underwing14n. A hind wing on an insect.
  • underwire13n. A semicircular wire placed in a bra to support the breasts.
  • underwood14n. Underbrush, undergrowth.
  • undesired11adj. Not desired; unwanted.
  • undiluted11adj. Not diluted or mixed with other substances.
  • undivided15adj. Unified, whole.
  • undocking17n. The process by which something is undocked; removal from a dock.
  • undoubted13adj. Without doubt; without question; certain.
  • undrafted14adj. Not drafted.
  • undrained11adj. Not drained.
  • undressed11adj. Having partially or completely removed one's clothes.
  • undrilled11adj. Not drilled.
  • undulator10n. A periodic structure of dipole magnets that generates a low-energy...
  • undutiful13adj. Not dutiful.
  • unearthed13adj. Not electrically earthed.
  • unearthly15adj. Not of the earth; nonterrestrial.
  • uneatable11adj. Not eatable; not fit for eating.
  • unelected12adj. Not elected.
  • unengaged12adj. Not engaged.
  • unequaled19adj. Unmatched, superlative, the best ever done, record setting.
  • unequally21adv. Not equally, unevenly, sometimes unfairly.
  • unerupted12adj. Not having erupted.
  • unethical14adj. Breaching the established standards of conduct or behavior within a...
  • unevolved16adj. Not evolved; yet to evolve.
  • unexcited19adj. Not feeling excitement or keen interest; placid; bored.
  • unexcused19adj. That has not been excused.
  • unexpired19adj. Not having expired.
  • unexposed19adj. That has not been exposed.
  • unfailing13adj. Inexhaustible.
  • unfancied15adj. Not predicted to win or succeed.
  • unfavored16adj. Not favoured.
  • unfeeling13adj. Without emotion or sympathy.
  • unfeigned14adj. Not feigned.
  • unfitness12n. The characteristic of being unfit or ill-suited.
  • unfitting13adj. Not fitting (e.g., of clothes).
  • unfixable21adj. Not capable of being fixed (mended or repaired).
  • unfledged15adj. Not having feathers.
  • unflushed16adj. Not flushed.
  • unfocused15adj. Not focused.
  • unfolding14n. The process by which something unfolds or becomes revealed.
  • unfounded14adj. Having no strong foundation; not based on solid reasons or facts.
  • unfreedom15n. The condition of being unfree.
  • unfrocked19adj. Not official or not (yet) uniformed.
  • unfrosted13adj. Not frosted.
  • unfurling13n. The act by which something is unfurled.
  • ungallant10adj. Not gallant; ignoble, dishonourable, unvaliant.
  • ungreased11adj. Not greased.
  • ungroomed13adj. Not groomed.
  • ungrouped13adj. Not assembled into a group.
  • unguarded12adj. Having no guard or protection; vulnerable.
  • unhandled14adj. Not having been handled.
  • unhappily19adv. Unfortunately; regrettably.
  • unhatched18adj. Not yet hatched.
  • unhealthy18adj. Characterized by, or conducive to poor health.
  • unhelpful17adj. Not providing help or assistance; not helpful.
  • unhitched18adj. Unattached.
  • unhooking17n. The removal of or from a hook.
  • unhurried13adj. Not hurried; not rushed.
  • uniformed15adj. Dressed in a uniform.
  • uniformly17adv. In a uniform manner, consistently.
  • unimpeded15adj. Free from obstructions.
  • unindexed18adj. Not indexed.
  • uninjured17adj. That did not suffer injury.
  • uninstall9v. To completely remove hardware or software from a computer system.
  • uninsured10adj. Not insured; not having insurance.
  • uninvited13adj. Not invited.
  • unionized19adj. Organized into a trades union or trades unions.
  • unipotent11adj. Having the capacity to develop into only one type of cell or tissue.
  • unisexual16adj. Of an organism, having characteristics of a single sex (as opposed to...
  • unitarian9adj. Espousing a unitary view of God.
  • unitarily12adv. In a unitary way.
  • unitarity12n. The quality or state of being unitary.
  • univalent12adj. Having an atomic valence of 1, or having only one valence.
  • universal12adj. Of or pertaining to the universe.
  • unknotted14adj. Not knotted.
  • unknowing17adj. Without knowing; ignorant.
  • unlabeled12adj. Not labeled; having no label.
  • unlatched15adj. Of a gate, etc., not latched.
  • unlearned10adj. Ignorant, uneducated, untaught, untrained.
  • unleashed13adj. Not leashed; without a leash on it.
  • unlighted14adj. Not lit.
  • unlikable15adj. Not likable.
  • unlimited12adj. Limitless or without bounds; unrestricted.
  • unlivable14adj. That cannot be lived.
  • unloading11n. The act by which something is unloaded.
  • unlocated12adj. That has not been located; the location of which is unknown.
  • unlovable14adj. Not lovable.
  • unluckily18adv. Without luck; unfortunately.
  • unmanaged13adj. Not managed.
  • unmarried12adj. Having no husband or wife.
  • unmasking16n. The act by which somebody or something is unmasked.
  • unmatched17adj. Not matched; odd.
  • unmeaning12adj. Having no meaning or significance.
  • unmerited12adj. Not merited.
  • unmetered12adj. Not metered, not charged on a meter (as Internet bandwidth).
  • unmindful15adj. Lacking awareness; oblivious.
  • unmounted12adj. Not mounted (in various senses).
  • unmourned12adj. Not mourned or grieved for.
  • unmovable16adj. Not physically able to be moved.
  • unmusical13adj. Not musical: lacking in musical ability.
  • unmutated12adj. Not mutated.
  • unnatural9adj. Not natural.
  • unnerving13adj. Causing a deprivation of courage, strength, confidence, etc.
  • unnoticed12adj. Not noticed.
  • unobvious14adj. Not obvious.
  • unopposed14adj. With no or little opposition.
  • unordered11adj. Not having been ordered.
  • unpacking18n. The act by which something is unpacked.
  • unpainted12adj. Not painted.
  • unpatched17adj. Not fitted with patches.
  • unpayable16adj. That cannot be paid.
  • unpeopled14adj. Not inhabited by people.
  • unperfect16adj. Imperfect.
  • unpicking18n. The act or process by which something is unpicked or disentangled.
  • unpiloted12adj. Lacking a pilot.
  • unpinning12n. The act of something being unpinned (in any sense); removal of a pin.
  • unplanned12adj. Unintentional; not intended.
  • unplanted12adj. Not planted.
  • unpleased12adj. Not pleased; displeased.
  • unpledged14adj. Not pledged; not committed.
  • unplugged14adj. Not plugged in.
  • unpoliced14adj. Not policed; not subject to effective regulation.
  • unpopular13adj. Lacking popularity.
  • unpowered15adj. Lacking in power, especially electrical power.
  • unpressed12adj. Not pressed.
  • unprinted12adj. Not (yet) printed.
  • unraveled13adj. Disentangled or cleared up.
  • unreached15adj. Not reached.
  • unreacted12adj. Not reacted.
  • unreality12n. Lack of reality or real existence.
  • unreduced13adj. Not reduced or subjected to reduction.
  • unrefined13adj. Crude, raw or unprocessed.
  • unrelated10adj. Not connected or associated.
  • unretired10adj. Not retired; still working.
  • unrevised13adj. Not revised; unmodified.
  • unripened12adj. Not ripened; still unripe.
  • unrivaled13adj. Beyond compare, far surpassing any other, unparalleled, without rival.
  • unroasted10adj. Not roasted.
  • unrolling10n. The process by which something is unrolled.
  • unrounded11adj. Not rounded.
  • unruffled16adj. Not ruffled or tousled.
  • unsaddled12adj. Not saddled.
  • unsalable11n. Something that cannot be sold.
  • unsayable14adj. Not capable of being said.
  • unscarred12adj. Not scarred.
  • unscathed15adj. Not harmed or damaged in any way; untouched.
  • unscented12adj. Unperfumed; having no scent.
  • unscrewed15adj. Not having been screwed.
  • unsealing10n. The opening of a seal.
  • unsecured12adj. Not physically secured; not fastened; not attached.
  • unseeable11adj. Invisible.
  • unselfish15adj. Not selfish.
  • unserious9adj. Characterized by a lack of seriousness (e.g., earnestness, commitment).
  • unsettled10adj. Disturbed, upset.
  • unshackle18v. To remove shackles from someone or something.
  • unsheathe15v. To deprive of a sheath; to draw from the sheath or scabbard, as a sword.
  • unshelled13adj. Not having had the shell removed.
  • unshipped17adj. Not having been shipped.
  • unsighted14adj. Not sighted; unseen.
  • unsightly16adj. Displeasing to the eye.
  • unskilled14adj. Of a person or workforce: not having a skill or technical training.
  • unsmiling12adj. Not smiling; serious or grave.
  • unsnapped14adj. Not having been snapped.
  • unsourced12adj. Presented without a source or reference.
  • unsparing12adj. Without sparing; liberal; profuse; thorough.
  • unspoiled12adj. Not spoiled or touched; pure.
  • unspooled12adj. Not spooled.
  • unspotted12adj. Not having spots.
  • unsprayed15adj. Not having been sprayed.
  • unstacked16adj. Not stacked.
  • unstaffed16adj. Without staff, or workers.
  • unstained10adj. Not dyed or discolored; not marred by any stains, marks, or spotting.
  • unstamped14adj. Not stamped.
  • unsterile9adj. Not sterile.
  • unstinted10adj. Not constrained, not restrained, or not confined, great in amount or...
  • unstirred10adj. That has not been mixed by stirring.
  • unstopped14adj. Not having been stopped.
  • unstudied11adj. Free of artifice or cunning; innocent, spontaneous and unaffected.
  • unstylish15adj. Not stylish; unfashionable.
  • unsullied10adj. Not sullied.
  • untainted10adj. Not tainted; free of contamination; pure.
  • untangled11adj. Not tangled.
  • untenable11adj. Not able to be held or sustained, such as of an opinion or position.
  • untenured10adj. Lacking tenure (permanence at an academic job).
  • unthought16n. That which has not been (yet) thought; that which has yet to enter into...
  • untoasted10adj. Not toasted.
  • untouched15adj. Remaining in its original, pristine state, undamaged; not altered.
  • untracked16adj. Not tracked.
  • untrained10adj. Lacking training, not having been instructed in something.
  • untreated10adj. Not treated.
  • untrimmed14adj. Not trimmed; not made tidy by cutting.
  • untrodden11adj. That has never been trod upon; unexplored, unspoiled.
  • untrusted10adj. Not trusted.
  • untutored10adj. Untrained, not taught or educated in a field of knowledge.
  • untwisted13adj. Not twisted.
  • untypical16adj. Not typical, atypical, unusual.
  • unusually12adv. In an unusual manner.
  • unvarying16adj. Persistent, constant, changeless.
  • unveiling13n. The act of unveiling or uncovering.
  • unvisited13adj. Not visited.
  • unwatched18adj. Not watched; unsupervised.
  • unwatered13adj. Lacking water: not having been provided with drinking water, etc.
  • unwearied13adj. Not wearied, not tired.
  • unwelcome16adj. Not welcome.
  • unwilling13adj. Not willing; reluctant.
  • unwinding14n. The act by which something is unwound.
  • unwitting13adj. Unaware or uninformed; oblivious.
  • unwomanly17adj. Not womanly; unfeminine.
  • unworldly16adj. Exceeding what is typically found in the world; exceptional...
  • unworried13adj. Free of worries.
  • unwounded14adj. Not wounded.
  • unwrapped17adj. Not wrapped.
  • unwritten12adj. Not written.
  • unzipping23n. The act by which something is unzipped.

UP

  • upcountry16adj. Living or situated remote from the seacoast.
  • upcycling19n. The act of converting (waste materials, etc.) into new materials or...
  • updatable14adj. That can be updated.
  • upgrading14n. The process by which something is upgraded.
  • upholding16n. The act by which something is upheld.
  • upholster14v. To fit padding, stuffing, springs, webbing and fabric covering to...
  • uplifting15adj. Improving the mood; causing cheerfulness.
  • uploading13n. The process by which something is uploaded.
  • upmanship18n. Only used in one-upmanship.
  • uppercase15adj. Written in upper case; capital.
  • uppermost15adj. At or nearest the top of something.
  • uprightly18adv. In an upright manner.
  • uprooting12n. A tearing up.
  • upscaling14n. The act by which something is upscaled; an increase in size or numbers.
  • upsetting12n. An overturning or disarrangement.
  • upstaging13n. A stealing of the spotlight, as (or as if) one performer eclipses...
  • upwelling15n. An upward movement from a lower source.

UR

  • uraninite9n. Any of several brownish-black forms of uranium dioxide, UO₂...
  • urbanized21adj. Having undergone urbanization.
  • urination9n. The process of passing urine, that is, of eliminating liquid waste from...
  • urography18n. Radiography of the urinary tract.
  • urokinase13n. A protease, found in the urine, which converts plasminogen to plasmin...
  • urologist10n. A doctor of urology.
  • urticaria11n. Itchy, swollen, red areas of the skin which can appear quickly in...

US

  • usability14n. The state or condition of being usable.
  • uselessly12adv. In a useless manner.
  • userspace13n. The area of memory used for a user's applications, etc., as opposed to...
  • usherette12n. A female usher.

UT

  • utterance11n. An act of, or the process of, uttering.
  • uttermost11adj. Extreme; utmost; of the farthest, greatest, or highest degree.
2,431 rare nine-letter words that start with U

The first 300 are shown.

Questions about these words

How many nine-letter words that start with U are there?
Word.ws lists 387 nine-letter words that start with U, plus 2,431 rare ones.
What are common nine-letter words that start with U?
universal, unlimited, uncertain, underwear, unrelated, unusually, unchanged and uncovered.
Which of the nine-letter words that start with U has the highest letter score?
unzipping scores 23 points with the standard letter tile values.

Related word lists

Source and license

Word lists and meanings adapted from the Wiktionary entry of each word. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out names, abbreviations, misspellings and offensive words, and ordered the most common words by how often they appear in English (wordfreq). Meanings from Wiktionary; this is not an official Scrabble, Words With Friends or Wordle word list. Wiktionary data of 2026-09-02.

Cite this page: “9-Letter Words Starting with U: 387 Words.” Word.ws, https://word.ws/words/9-letter/starting-with-u. Based on Wiktionary, CC BY-SA 4.0.