Word.ws English Dictionary

fastness

Syllables: fast·ness/ˈfɑːs(t)nəs/US/ˈfæs(t)nəs/

fastness noun: the quality or state of being strongly attached; firmness, secureness, tenacity.

Noun

fastness (countable and uncountable, plural fastnesses)

  1. The quality or state of being strongly attached; firmness, secureness, tenacity.
    • [T]he thing, as it is, having firſt taken vp her ſtand in the memory, and there by the way of knowledge and witting, imprinted it-ſelfe, it were hard it ſhould not repreſent it ſelfe to the imagination, diſplacing and ſupplanting falſehood, which therein can have no ſuch footing, or ſetled...1603, Michel de Montaigne, “Of Lyers”, in John Florio, transl., The Essayes […], book I, London: […] Val[entine] Simmes for Edward Blount […], →OCLC, page 16
    • [T]his is the ſure, infallible Teſt of Love, that the Meaſure of its Strength is to be taken by the Faſtneſs of its Hold.1699 October 24 (date delivered; Gregorian calendar); first published 1715, Robert South, “A Discourse Preached at Christ-Church, Oxon, before the University, October 15. 1699.”, in Twelve Sermons...
  2. (specifically) The ability of a dye to withstand fading.
    • Although aniline dyes have replaced most natural dyes in the modern era, natural dyers still revere cochineal for its brilliance and fastness.2026, Sara Temme, “Two Insects nad Their Brilliant Reds”, in Handwoven, volume XLVII, number 1, page 19
  3. The quality or state of moving quickly; quickness, rapidity, swiftness.
    • [Frog:] Why are all of us fleein'? What dire peril threatens our sylvan fastness?
    • [Bug:] Just run! Your fastness shouldn't be too slow.1959 September 13, Walt Kelly, Pogo, Sunday, comic strip, →ISBN, page 251
  4. The quality or state of having an extravagant lifestyle or immoral habits.
  5. (archaic) Of a fortress or other place: the quality or state of being secure from access or attack; safety, security.
    • But now his cruelty ſo ſore ſhe drad, / That to thoſe fennes for faſtneſſe ſhe did fly, / And there her ſelfe did hyde from his hard tyranny.1596, Edmund Spenser, “Book V, Canto X”, in The Faerie Queene. […], part II (books IV–VI), London: […] [Richard Field] for William Ponsonby, →OCLC, stanza 18, page 316
    • The Foes had left the faſtneſs of their Place, / Prevail'd in Fight, and had his Men in Chace.1697, Virgil, “The Ninth Book of the Æneis”, in John Dryden, transl., The Works of Virgil: Containing His Pastorals, Georgics, and Æneis. […], London: […] Jacob Tonson, […], →OCLC, page 492, lines...
  6. (obsolete) The quality or state of being firm, hard, or solid; firmness, hardness, solidity.
    • Which was brought to paſſe I beleue, […] by a good way of Epitome, in binding him ſelfe to tranſlate meros Atticos Oratores, and ſo to bring his ſtyle, from all lowſe groſneſſe, to ſoch firme faſtnes in latin, as is in Demoſthenes in Greeke.a. 1569 (date written), Roger Ascham, “[The Second Booke Teachyng the Ready Way to the Latin Tong]”, in Margaret Ascham, editor, The Scholemaster: Or Plaine and Perfite Way of Teaching Children, to...
  7. (also, figuratively) A fortified or secure place; a fortress, a stronghold.
    • [I]f the VVelſh compelled by famine ventred out of their ſtrengthes or faſtneſſes, in or about Snovvdon, the Garriſon Souldiers of Gannocke vvere ready to intercept and kill them; […]1611, Iohn Speed [i.e., John Speed], “Henry the Third, […]”, in The History of Great Britaine under the Conquests of yͤ Romans, Saxons, Danes and Normans. […], London: […] William Hall and John...
    • [T]he ſlaves that yet remained in the faſtneſſes of Jamaica, attached to the Spaniſh, and hoſtile to the Engliſh ſettlers, continued to be troubleſome, and at times formidable.1803, John Browne Cutting, “A Succinct History of Jamaica”, in R[obert] C[harles] Dallas, The History of the Maroons, from Their Origin to the Establishment of Their Chief Tribe at Sierra Leone: […]...
  8. (regional, obsolete except UK) Something used to fasten or tie; a fastener or fastening.

fastness meaning in Sanskrit

fastness in Sanskrit

fortified or secure place — see also fortress, stronghold
कलत्र kalatra

Examples of fastness in a sentence

  • The incubators are built in remote fastnesses, where there is little or no likelihood of their being discovered by other tribes.1912 February–July, Edgar Rice Burroughs, “Under the Moons of Mars”, in The All-Story, New York, N.Y.: Frank A. Munsey Co., →OCLC...
  • She saw them dramatically, and really seemed herself to live a larger life because she entertained them and visited them in their fastnesses.1919, W[illiam] Somerset Maugham, chapter IV, in The Moon and Sixpence, [New York, N.Y.]: Grosset & Dunlap Publishers […], →OCLC, page 26:
  • […] though cut glass was nothing new in the nineties, it was then especially busy reflecting the dazzling light of fashion from the Back Bay to the fastnesses of the Middle West.1920, F. Scott Fitzgerald, “The Cut-Glass Bowl”, in Scribner's Magazine:
  • When we read Chaucer, we are floated up to him insensibly on the current of our ancestors' lives, […] But the Greeks remain in a fastness of their own.1925 April, Virginia Woolf, “On Not Knowing Greek”, in The Common Reader, 2nd edition, London: Leonard & Virginia Woolf at the Hogarth...

Forms of fastness

pluralfastnesses

Origin of fastness

From Middle English fastnes, fastnesse (“immovableness, stability; firmness, solidness; secure attachment; constancy; obstinacy; something giving firmness or strength; of sleep: soundness; of a wound: healing; assurance, confirmation”) [and other forms], from Old English fæstnes (“fastness, firmness, stability; resolution; tenacity; vigour; firmament; fortification”) [and other forms], from fæst (“firm, stable; constant”) (from Proto-Germanic *fastuz (“firm, fixed; secure”); see further at that entry) + -nes (suffix forming abstract nouns denoting a quality or state). The English word may be analysed as fast + -ness.

Words formed from fastness

Questions about fastness

What does fastness mean?
Fastness means the quality or state of being strongly attached; firmness, secureness, tenacity.
What is fastness in Sanskrit?
Fastness in Sanskrit is कलत्र (kalatra). See Fastness meaning in Sanskrit.
How do you use fastness in a sentence?
The incubators are built in remote fastnesses, where there is little or no likelihood of their being discovered by other tribes.
What part of speech is fastness?
Fastness is a noun.
How do you pronounce fastness?
Fastness is pronounced /ˈfɑːs(t)nəs/ (UK).
What is the plural of fastness?
The plural of fastness is fastnesses.

Words near fastness in the dictionary

  1. fastmine
  2. fastmined
  3. fastmines
  4. fastmining
  5. fastmoving
  6. fastness
  7. fastnesses
  8. Fastnet
  9. fastpaced
  10. fastpack
  11. fastpacked

Source and license

Adapted from Wiktionary: fastness (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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Pronunciation audio from Wikimedia Commons, each file under its own free license: LL-Q1860 (eng)-Vealhurl-fastness.wav.

Cite this entry: “fastness.” Word.ws, https://word.ws/fastness. Based on Wiktionary, CC BY-SA 4.0.