impossible

im·pos·si·ble
I1M3P3O1S1S1I1B3L1E1
UK/ɪmˈpɒs.ɪ.bəl/UK[ɪmˈpɒs.ɪ.bl̩]UK/ɪmˈpɒs.ə.bəl/UK[ɪmˈpɒs.ə.bl̩]

adjective

Not possible; not able to be done or happen.

“This humidity is impossible.”

CommonScrabble 16

Meanings

adjectiveimpossible (not generally comparable, comparative more impossible, superlative most impossible)

comparative more impossible · superlative most impossible · alternative obsolete inpossible

  1. not comparableusuallyNot possible; not able to be done or happen.

    It is difficult, if not impossible, to memorize 20,000 consecutive numbers.

    5 more examples

    Antonio: What impossible matter will he make easy next? Sebastian: I think he will carry this island home in his pocket and give it his son for an apple. Antonio : And sowing the kernels of it in the sea bring forth more islands.

    1610–1611 (date written), William Shakespeare, “The Tempest”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act II, scene i]

    It was impoſſible that the queen of France [Marie Antoinette] ſhould not be deeply affected by a conteſt, which ſo cloſely involved her neareſt and deareſt connections, and threatened ſo immediate and perhaps irreparable a breach of the harmony and friendſhip ſubſiſting between them.

    1787, “The History of Europe”, in The Annual Register, or A View of the History, Politics, and Literature, for the Years 1784 and 1785, volume XXVII, London: Printed by J[ames] Dodsley, in Pall-Mall, →OCLC, chapter VIII, page 134, column 1

    ALICE: I'm looking for a White Rabbit.... So if you don't mind. (Alice looks through the key hole) There he is - I simply must get through DOORKNOB: Sorry, you're much too big. Simply impassable. ALICE: You mean impossible. DOORKNOB: No, IMPASSABLE - NOTHING'S IMPOSSIBLE.

    1951, Alice in Wonderland, Walt Disney Productions; quoted in Jabberwocky, volumes 1–2, The Lewis Carroll Society, 1969, page 9

    13 March 1962, John F. Kennedy, speech at the White House Those who make peaceful revolution impossible will make violent revolution inevitable.

    Seeing the British establishment struggle with the financial sector is like watching an alcoholic […]. Until 2008 there was denial over what finance had become. When a series of bank failures made this impossible, there was widespread anger, leading to the public humiliation of symbolic figures.

    2013 June 28, Joris Luyendijk, “Our banks are out of control”, in The Guardian Weekly, volume 189, number 3, page 21
  2. colloquialnot comparableusuallyVery difficult to deal with.

    This humidity is impossible.

    2 more examples

    You never listen to a word I say – you're impossible!

    I never met a more impossible girl.

    2006, Amanda Palmer, “Delilah”, in Yes, Virginia..., performed by The Dresden Dolls
  3. datednot comparableusuallymathematicsimaginary

    impossible quantities, or imaginary numbers

nounimpossible (plural impossibles)

plural impossibles · alternative obsolete inpossible

  1. An impossibility.

    In fact, to most people, the real impossibles do not seem impossible, or wonderful, or even difficult at all.

    1888 November, Joseph Le Conte, “The Problem of a Flying-Machine”, in The Popular Science Monthly, volume 34, page 70
    5 more examples

    “Ye can't expect impossibles, and Jim hadn't no idee o' takin' yer trunk along of him in ther buggy when he kem hyar this mornin'.

    1890, Jean Kate Ludlum, At Brown's: An Adirondack Story, page 15

    For one thing, the Gospel's moral impossibles appear, in this light, not as an objection to Christianity, but as one of its most striking evidences.

    1903, Jonathan Brierley, Problems of Living, page 16

    Yes, the church lives for impossibles, and she lives by impossibles, and if she shrinks from impossibles her own vigor will shrink and die.

    1911, J. H. Jowett, “Turning Back”, in Homiletic Review, volume 61, page 392

    Aristotle (1952), in his Nicomachean Ethics, described the relation between will and choice: a Choice cannot relate to impossibles, and if anyone said he chose them he would be thought silly;

    2000, Kenneth D. Keith, Robert L. Schalock, Cross-cultural Perspectives on Quality of Life, page 292

    Dreams are made out of impossibles. We cannot reach the impossibles by using the analytical minds which are trained to deal with hard information which is currently available.

    2010, The Journal of Parliamentary Information - Volume 56, page 20
  2. A skateboard trick consisting of a backflip performed in midair.

Synonyms & antonyms

antonym(s) of “not able to be done or happen”

adjectivenot capable of occurring or being accomplished or dealt with

Opposite

adjective(used of persons or their behavior) not acceptable or reasonable

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Middle Englishimpossible
  2. Englishimpossible

From Middle English impossible, equivalent to im- + possible.

Full word history & related roots →

Translations

Ancient Greek ἀδύνατος
  • ἀδύνατος (adúnatos)not able to be done
Arabic مُسْتَحِيل, مُسْتَحِيل
  • مُسْتَحِيل (mustaḥīl)not able to be done
  • مُسْتَحِيل (mustaḥīl)an impossibility
Bulgarian невъзмо́жен, невероятен
  • невъзмо́жен (nevăzmóžen)not able to be done
  • невероятен (neverojaten)never happening
  • неосъществим (neosăštestvim)very difficult to deal with
  • неизпълним (neizpălnim)very difficult to deal with
Catalan impossible, impossible
  • impossiblenot able to be done
  • impossiblevery difficult to deal with
  • insuportablevery difficult to deal with
  • impossiblean impossibility
Chinese Cantonese 冇可能嘅
  • 冇可能嘅 (mou⁵ ho² nang⁴ ge³)not able to be done
Chinese Mandarin 不可能的, 不會發生 /不会发生
  • 不可能的 (bù kěnéng de)not able to be done
  • 不會發生 /不会发生 (Bù huì fāshēng)never happening
Czech nemožný, nemožný
  • nemožnýnot able to be done
  • nemožnývery difficult to deal with
Danish umulig, umuligt
  • umulignot able to be done
  • umuligtnever happening
  • umuligvery difficult to deal with
  • umulighedan impossibility
Dutch onmogelijk
  • onmogelijknot able to be done
Esperanto neebla
  • neeblanot able to be done
Estonian võimatu
  • võimatunot able to be done
Finnish mahdoton, mahdoton
  • mahdotonnot able to be done
  • mahdotonvery difficult to deal with
  • kauheavery difficult to deal with
  • kamalavery difficult to deal with
French impossible, impossible
  • impossiblenot able to be done
  • impossiblenever happening
  • insupportablevery difficult to deal with
  • impossiblevery difficult to deal with
German unmöglich, unmöglich
  • unmöglichnot able to be done
  • unmöglichnever happening
  • unmöglichvery difficult to deal with
Greek ακατόρθωτος, αδύνατο
  • ακατόρθωτος (akatórthotos)not able to be done
  • αδύνατο (adýnato)very difficult to deal with
  • αφόρητο (afórito)very difficult to deal with
  • απειλητικό (apeilitikó)very difficult to deal with
  • ανίσχυρο (aníschyro)very difficult to deal with
  • ανέφικτο (anéfikto)very difficult to deal with
  • ακατόρθωτο (akatórthoto)an impossibility
  • αδύνατο (adýnato)an impossibility
  • αδιανόητο (adianóito)an impossibility
Hebrew בלתי־אפשרי
  • בלתי־אפשרי (biltí-efsharí)not able to be done
Hindi असंभव or असम्भव, नामुमकिन
  • असंभव or असम्भव (asambhav)not able to be done
  • नामुमकिन (nāmumkin)not able to be done
  • अनहोनी (anhonī)not able to be done
Hungarian lehetetlen, lehetetlen
  • lehetetlennot able to be done
  • lehetetlenvery difficult to deal with
  • nehézvery difficult to deal with
Icelandic ómögulegur
  • ómögulegurnot able to be done
Indonesian mustahil
  • mustahilnot able to be done
Italian impossibile, impossibile
  • impossibilenot able to be done
  • impossibilenever happening
  • insopportabilevery difficult to deal with
  • impossibilevery difficult to deal with
  • impossibilean impossibility
Japanese 不可能な, 無理な
  • 不可能な (fukanō na)not able to be done
  • 無理な (muri na)not able to be done
  • 不可能な (fukanō na)never happening
  • ありえない (arienai)never happening
Korean 불가능하다
  • 불가능하다 (bulganeunghada)not able to be done
Latvian neiespējams, neiespējama
  • neiespējamsnot able to be done
  • neiespējamanot able to be done
Lithuanian neįmanoma
  • neįmanomanot able to be done
Malay mustahil
  • mustahilnot able to be done
Māori tē-taea
  • tē-taeanot able to be done
Norwegian umulig
  • umulignot able to be done
Persian غیرممکن
  • غیرممکن (ġeyr-e-momken)not able to be done
Polish niemożliwy, niemożliwy
  • niemożliwynot able to be done
  • niemożliwynever happening
Portuguese impossível, impossível
  • impossívelnot able to be done
  • impossívelnever happening
  • impossívelvery difficult to deal with
  • insuportávelvery difficult to deal with
Romanian imposibil
  • imposibilnot able to be done
Russian невозмо́жный, невыполнимый
  • невозмо́жный (nevozmóžnyj)not able to be done
  • невыполнимый (nevypolnimyj)not able to be done
  • неосуществи́мый (neosuščestvímyj)not able to be done
  • несбыточный (nesbytočnyj)never happening
  • недостижи́мый (nedostižímyj)never happening
  • нереальный (nerealʹnyj)very difficult to deal with
  • невозмо́жный (nevozmóžnyj)very difficult to deal with
  • невыполнимый (nevypolnimyj)very difficult to deal with
Scottish Gaelic do-dhèanta
  • do-dhèantanot able to be done
Slovak nemožný
  • nemožnýnot able to be done
Spanish imposible, inasumible
  • imposiblenot able to be done
  • inasumiblenot able to be done
  • imposiblenever happening
  • insoportablevery difficult to deal with
  • imposiblean impossibility
Swedish omöjlig, ogörlig
  • omöjlignot able to be done
  • ogörlignot able to be done
  • orealiserbarnot able to be done
  • omöjligvery difficult to deal with
Tagalog di-sapala
  • di-sapalanot able to be done
Thai เป็นไปไม่ได้
  • เป็นไปไม่ได้ (bpen-bpai-mâi-dâi)not able to be done
Turkish olanaksız, imkânsız
  • olanaksıznot able to be done
  • imkânsıznot able to be done
Ukrainian неможли́вий
  • неможли́вий (nemožlývyj)not able to be done
Urdu اسمبھو, ناممکن
  • اسمبھو (asambhav)not able to be done
  • ناممکن (nāmumkin)not able to be done
  • ان ہونی (an honī)not able to be done
Vietnamese không thể, bất khả thi
  • không thểnot able to be done
  • bất khả thinot able to be done
Welsh amhosibl
  • amhosiblnot able to be done
Cite this entry
APA

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

MLA

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

Chicago

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

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