unimaginable

U1N1I1M3A1G2I1N1A1B3L1E1
/ˌʌnɪˈmædʒɪnəbəl/

adjective

Unable to be imagined; inconceivable or mind-boggling; beyond belief.

Similar
impossibleinconceivableout of the questionunthinkable
Opposite
imaginable
OriginEnglish imagine ← Middle English un- ← Old English un- →
Less commonScrabble 17
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Meanings

adjectiveunimaginable (comparative more unimaginable, superlative most unimaginable)

comparative more unimaginable · superlative most unimaginable

  1. Unable to be imagined; inconceivable or mind-boggling; beyond belief.

    But at the microlevel it consists of an unimaginable number of atoms connected by springy chemical bonds, all jiggling around at a rate that even our fastest supercomputer might envy.

    2007 November 18, Jim Holt, “Mind of a Rock”, in New York Times

Synonyms & antonyms

Opposite
imaginable

adjectivetotally unlikely

Similar
impossibleinconceivableout of the questionunthinkable
Also see
impossibleincalculableinconceivablemind-bogglingout of the question

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Proto-Indo-European*né
  2. Proto-Indo-European*n̥-
  3. Proto-Germanic*un-
  4. Proto-West Germanic*un-
  5. Old Englishun-
  6. Middle Englishun-
  7. Englishun-
  8. Englishimagine
  9. Englishunimaginable

From un- + imagine + -able.

Full word history & related roots →

Translations

Bulgarian невъобразим
  • невъобразим (nevăobrazim)unable to be imagined
Catalan inimaginable
  • inimaginableunable to be imagined
Chinese Mandarin 不能想像的, 不可思議 /不可思议
  • 不能想像的 (bù néng xiǎngxiàng de)unable to be imagined
  • 不可思議 /不可思议 (bùkěsīyì)unable to be imagined
Czech nepředstavitelný
  • nepředstavitelnýunable to be imagined
Dutch onvoorstelbaar
  • onvoorstelbaarunable to be imagined
Esperanto neimagebla
  • neimageblaunable to be imagined
Finnish uskomaton, ennalta-arvaamaton
  • uskomatonunable to be imagined
  • ennalta-arvaamatonunable to be imagined
French inimaginable
  • inimaginableunable to be imagined
German unvorstellbar
  • unvorstellbarunable to be imagined
Hindi अकल्पनीय, कल्पनातीत
  • अकल्पनीय (akalpanīya)unable to be imagined
  • कल्पनातीत (kalpanātīt)unable to be imagined
Hungarian elképzelhetetlen
  • elképzelhetetlenunable to be imagined
Italian inimmaginabile
  • inimmaginabileunable to be imagined
Japanese 考えられない, 想像できない
  • 考えられない (kangaerarenai)unable to be imagined
  • 想像できない (sōzō dekinai)unable to be imagined
Polish niepojęty, niewyobrażalny
  • niepojętyunable to be imagined
  • niewyobrażalnyunable to be imagined
Portuguese inimaginável, impensável
  • inimaginávelunable to be imagined
  • impensávelunable to be imagined
Romanian inimaginabil, neimaginabil
  • inimaginabilunable to be imagined
  • neimaginabilunable to be imagined
Russian невообразимый
  • невообразимый (nevoobrazimyj)unable to be imagined
Spanish inimaginable
  • inimaginableunable to be imagined
Swedish otänkbar
  • otänkbarunable to be imagined
Turkish düşünelemez
  • düşünelemezunable to be imagined
Cite this entry
APA

unimaginable. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/unimaginable

MLA

“unimaginable.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/unimaginable. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “unimaginable,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/unimaginable.

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