unbelievable

English · Thesaurus

AI In plain words

Writing a short explanation…

Written by a house AI from the entry below, in your language. The entry itself is the source.

unbelievable

  • /ˌʌnbɪˈliːvəbl̩/
  • /bi-/
  • /bə-/

Where it comes from

From un- + believable.

adjective more unbelievable · unbelievabler · most unbelievable · unbelievablest

  1. literally Not to be believed. ‘Come on, girls,’ said Steve, ‘be honest, we won.’ / ‘Yeah,’ said Raymond, ‘we let you off because you’re girls.’ / ‘You’re unbelievable,’ said Liz. / ‘Well, if we’re unbelievable,’ said Steve, ‘then you’re unbelievabler.’

    Similar: beyond belief, incredible, noncredible · Opposite: believable, credible

  2. figuratively Amazing, astonishing; so surprising that one is almost, or figuratively, unable to believe. The most unbelievable thing happened to me today!

    Similar: incredible

  3. Implausible or improbable. His excuse seems rather unbelievable.

    Similar: improbable, infeasible, unlikely · Opposite: feasible, likely, plausible, probable

Thesaurus

Closest in meaning: improbable, implausible, incredible, unlikely, unconvincing, undreamed, unimagined, undreamt, astounding, marvelous, marvellous, fabulous, tall, dumbfounding, dumfounding, undreamed of

Translations

Every language

adj incredible

Españolincreíble
日本語信じられない shinjirarenai
中文不可思議 /不可思议 bùkěsīyì
Portuguêsinacreditável, incrível
Françaisincroyable
Deutschunglaublich
Italianoincredibile
Ελληνικάαπίστευτος apísteftos
Românăincredibil, de necrezut
Русскийневероя́тный neverojátnyj
العربيةلا يصدق
עבריתלֹא יֵאָמֵן lo yeamén, לֹא יְאֻמַּן כִּי יְסֻפַּר lo y'ummán ki y'suppár

adj implausible

中文難以置信 /难以置信 nányǐzhìxìn
Portuguêsinacreditável
Françaisincroyable
Deutschunglaubhaft, unglaubwürdig
Русскийнеправдоподо́бный nepravdopodóbnyj

Talk about this word

Cite this
MLA

"unbelievable." Wiktionary, via Micwyn, micwyn.com/word/unbelievable. Accessed 6 Nov. 2026.

APA

unbelievable. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/unbelievable

Chicago

"unbelievable." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/unbelievable.

BibTeX
@misc{unbelievable_2026,
  title = {unbelievable},
  howpublished = {Wiktionary, via Micwyn},
  year = {2026},
  url = {https://micwyn.com/word/unbelievable},
  urldate = {2026-11-06}
}