unbelievable

adjective

un·​be·​liev·​able ˌən-bə-ˈlē-və-bəl How to pronounce unbelievable (audio)
Synonyms of unbelievablenext
: too improbable for belief
The plot is unreal and unbelievable.
also : of such a superlative degree as to be hard to believe
the destruction was unbelievable
made an unbelievable catch in center field
unbelievably
ˌən-bə-ˈlē-və-blē How to pronounce unbelievable (audio)
adverb

Synonyms of unbelievable

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Examples of unbelievable in a Sentence

a completely unbelievable story about why there was lipstick on his collar
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The real reason is that his report is an unfocused jumble of personal testimony, with no evident attempt to corroborate the lurid and sometimes unbelievable accusations made by anonymous sources. — Helen Lewis, The Atlantic, 26 July 2026 There are two unbelievable bargains hidden in the fine print of the Connecticut Pizza & Brew Fest to take place August 2 at Hartford HealthCare Amphitheater in Bridgeport. — Pamela McLoughlin, Hartford Courant, 25 July 2026 Somehow, though, in a season when he’s been hurt twice, there is an unbelievable amount of piling on that is going on with him these days. — Mike Lupica, New York Daily News, 25 July 2026 Floor-to-ceiling windows let in unbelievable views of East Antarctica’s peaks and ice fields; blackout blinds shield you at night from the midnight sun. — Laura Dannen Redman, Robb Report, 23 July 2026 See All Example Sentences for unbelievable

Word History

First Known Use

1548, in the meaning defined above

Time Traveler
The first known use of unbelievable was in 1548

Rhymes for unbelievable

See All Rhymes for unbelievable

Browse Nearby Words

unbelief
unbelievable
unbelieve
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Cite this Entry

“Unbelievable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unbelievable. Accessed 3 Aug. 2026.

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Kids Definition

unbelievable

adjective
un·​be·​liev·​able ˌən-bə-ˈlē-və-bəl How to pronounce unbelievable (audio)
1
: too unlikely for belief
an unbelievable story
2
: very significant or impressive
made an unbelievable catch in center field
unbelievably
-blē How to pronounce unbelievable (audio)
adverb

More from Merriam-Webster on unbelievable

Nglish: Translation of unbelievable for Spanish Speakers

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