English edit

Etymology edit

From un- +‎ believable.

Pronunciation edit

  • IPA(key): /ˌʌnbəˈliːvəbl̩/
  • (file)

Adjective edit

unbelievable (comparative more unbelievable, superlative most unbelievable)

  1. (literally) Not to be believed.
  2. (figuratively) Amazing, incredible; so surprising that one is almost unable to believe.
    The most unbelievable thing happened to me today!
    This restaurant makes unbelievable pizza!
  3. Implausible or improbable.
    Synonyms: improbable, infeasible, unlikely
    Antonyms: feasible, likely, plausible, probable
    His excuse seems rather unbelievable.

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