imperfect

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/ɪmˈpɜː(ɹ)fɪkt//ɪmˈpɜː(ɹ)fɛkt//ɪmpə(ɹ)ˈfɛkt/

adjective

Not perfect.

Less commonScrabble 18

Meanings

adjectiveimperfect (comparative more imperfect, superlative most imperfect)

comparative more imperfect · superlative most imperfect

  1. Not perfect.

    Why, then, your other senses grow imperfect.

    c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act IV, scene vi]
    2 more examples

    Nothing imperfet or deficient left Of all that he Created.

    1667, John Milton, “Book VIII”, in Paradise Lost. […], London: […] [Samuel Simmons], and are to be sold by Peter Parker […]; [a]nd by Robert Boulter […]; [a]nd Matthias Walker, […], →OCLC; republished as Paradise Lost in Ten Books: […], London: Basil Montagu Pickering […], 1873, →OCLC

    Then say not man's imperfect, Heaven in fault; / Say rather, man's as perfect as he ought.

    1733, [Alexander Pope], An Essay on Man. […], (please specify |epistle=I to IV), London: […] J[ohn] Wilford, […], →OCLC

    Synonyms: defective, fallible, faultful, faulty · Antonyms: faultless, infallible, perfect

  2. biologyUnisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.

    Antonyms: perfect

  3. biologyKnown or expected to be polyphyletic, as of a form taxon.
  4. grammarRepresenting a continuing or repeated action.
  5. obsoleteLacking some elementary organ that is essential to successful or normal activity.

    When the prophet Joel was describing the formidable accidents in the day of the Lord's judgment, and the fearful sentence of an angry Judge, he was not able to express it, but stammered like a child, or an amazed, imperfect person.

    1653, “Twenty-five Sermons Preached at Golden Grove; Being for the Winter Half-year, […]: Sermon III. [Doomsday Book; or, Christ’s Advent to Judgment.] Part III.”, in Reginald Heber, editor, The Whole Works of the Right Rev. Jeremy Taylor, D.D. […], volume V, London: Ogle, Duncan, and Co. […]; and Richard Priestley, […], published 1822, →OCLC, page 35
nounimperfect (plural imperfects)

plural imperfects

  1. Something having a minor flaw.
verbimperfect (third-person singular simple present imperfects, present participle imperfecting, simple past and past participle imperfected)

present singular third person imperfects · participle present imperfecting · participle past imperfected · past imperfected

  1. transitiveto make imperfect

    Time, which perfects some things, imperfects also others.

    1716, Thomas Browne, edited by Samuel Johnson, Christian Morals, 2nd edition, London: J. Payne, published 1756, Part I, p. 43
    2 more examples

    1651, John Donne, Letter to Henry Goodere, in Letters to Severall Persons of Honour, edited by Charles Edmund Merrill, Jr., New York: Sturgis & Walton, 1910, I write to you from the Spring Garden, whither I withdrew my self to think of this; and the intensenesse of my thinking ends in this, that by my help Gods work should be imperfected, if by any means I resisted the amasement.

    […] such was their desire for greater rhythmic freedom that composers began to use red notes as well. […] Their value was […] restricted at first, for redness implies the imperfecting of a note which is perfect if black […]

    1962, Alec Harman, Wilfrid Mellers, Man and His Music: The Story of Musical Experience in the West, Oxford University Press, Part I, Chapter 5, p. 126

Synonyms & antonyms

adjectiveUnisexual: having either male (with stamens) or female (with pistil) flowers, but not with both.

Opposite

nounA tense of verbs used in describing a past action that is incomplete or continuous.

More synonyms by meaning

adjectivenot perfect; defective or inadequate

Opposite

adjectivewanting in moral strength, courage, or will; having the attributes of man as opposed to e.g. divine beings

nouna tense of verbs used in describing action that is on-going

Broader

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Italic*n̥-
  4. Latinim-
  5. Proto-Indo-European*per-
  6. Proto-Italic*peri-
  7. Latinper-
  8. Proto-Indo-European*dʰeh₁-
  9. Proto-Indo-European*dʰeh₁k-
  10. Proto-Indo-European*dʰh₁kyéti
  11. Proto-Italic*θakjō
  12. Proto-Italic*fakjō
  13. Latinfaciō
  14. Latinperficiō
  15. Latinperfectus
  16. Latinimperfectus
  17. Old Frenchimparfit
  18. Middle Englishimperfit
  19. Englishimperfect

From Middle English imperfit, from Old French imparfit (modern French imparfait), from Latin imperfectus. Spelling modified 15c. to conform Latin etymology. See im- + perfect.

Full word history & related roots →

Translations

Ancient Greek παρατατικός, παρατατικός
  • παρατατικός (paratatikós)(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • παρατατικός (paratatikós)past tense
Arabic ناقص-غير كامل
  • ناقص-غير كاملpast tense
Bulgarian незавършен, несъвършен
  • незавършен (nezavăršen)not perfect
  • несъвършен (nesăvăršen)not perfect
  • ми́нало несвърше́но вре́ме (mínalo nesvăršéno vréme)past tense
  • имперфе́кт (imperfékt)past tense
  • и́мперфект (ímperfekt)past tense
Catalan imperfecte, imperfet
  • imperfectenot perfect
  • imperfetpast tense
Czech nedokonalý
  • nedokonalýnot perfect
Dutch imperfect, onvolmaakt
  • imperfectnot perfect
  • onvolmaaktnot perfect
  • onvoltooid verleden tijdpast tense
Esperanto imperfekta, imperfekto
  • imperfekta(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • imperfektopast tense
Finnish vajavainen, epätäydellinen
  • vajavainennot perfect
  • epätäydellinennot perfect
  • sekundasomething having a minor flaw
  • imperfektipast tense
French imparfait, imparfait
  • imparfaitnot perfect
  • imparfait(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • imparfaitpast tense
German unvollkommen, mangelhaft
  • unvollkommennot perfect
  • mangelhaftnot perfect
  • unvollständignot perfect
  • fehlerhaftnot perfect
  • Imperfektpast tense
  • Imperfektumpast tense
Greek ατελής, ελλιπής
  • ατελής (atelís)not perfect
  • ελλιπής (ellipís)not perfect
  • πλημμελής (plimmelís)not perfect
  • ελαττωματικός (elattomatikós)not perfect
  • υποτυπώδης (ypotypódis)something having a minor flaw
  • παρατατικός (paratatikós)past tense
Hebrew לֹא מוּשְלָם, לֹא נִשְׁלָם
  • לֹא מוּשְלָם (lo mushlám)not perfect
  • לֹא נִשְׁלָם (lo nishlám)(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • עָבָר לֹא מֻגְמָר (‘avár lo mugmár)past tense
Hungarian tökéletlen, folyamatos
  • tökéletlennot perfect
  • folyamatos(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • befejezetlen(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • imperfektumpast tense
  • folyamatos múltpast tense
  • elbeszélő múltpast tense
Indonesian tidak sempurna
  • tidak sempurnanot perfect
Irish anfhoirfe
  • anfhoirfenot perfect
Italian imperfetto, imperfetto
  • imperfettonot perfect
  • imperfetto(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • imperfettopast tense
Japanese 不完全な
  • 不完全な (fukanzen na)not perfect
Latin imperfectus, imperfectus
  • imperfectusnot perfect
  • imperfectus(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • tempus praeteritum imperfectumpast tense
  • tempus imperfectumpast tense
  • praeteritum imperfectumpast tense
  • imperfectumpast tense
Māori takarepa, nawe
  • takarepanot perfect
  • nawenot perfect
  • kōkaunot perfect
  • tōrōkirinot perfect
Persian ناقص
  • ناقص (nâqes)past tense
Polish niedoskonały, niedokonany
  • niedoskonałynot perfect
  • niedokonany(grammar) belonging to a tense of verbs used in describing a past action that is incomplete or continuous
  • niedoskonałośćsomething having a minor flaw
  • czas przeszły niedokonanypast tense
Portuguese imperfeito, imperfeito
  • imperfeitonot perfect
  • imperfeitopast tense
Romanian imperfect, imperfect
  • imperfectnot perfect
  • imperfectpast tense
Russian несоверше́нный, имперфе́кт
  • несоверше́нный (nesoveršénnyj)not perfect
  • имперфе́кт (imperfékt)past tense
  • несоверше́нное вре́мя (nesoveršénnoje vrémja)past tense
Spanish imperfecto, imperfecto
  • imperfectonot perfect
  • imperfectopast tense
Swedish imperfekt
  • imperfektpast tense
Tagalog balhag, dihimpit
  • balhagnot perfect
  • dihimpitnot perfect
Turkish kusurlu, noksan
  • kusurlunot perfect
  • noksannot perfect
Ukrainian недоскона́лий
  • недоскона́лий (nedoskonályj)not perfect
Cite this entry
APA

imperfect. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/imperfect

MLA

“imperfect.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/imperfect. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “imperfect,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/imperfect.

Source: imperfect on Wiktionary, CC BY-SA 4.0.