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

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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.
And the notion of me showing up and asking them for money is still unbelievable to this day. — Jeryl Brunner, Forbes.com, 8 Aug. 2025 Meanwhile, the plans to evacuate the makeshift camp in the event of a major storm are skimpy and frankly, unbelievable. — Orlando Sentinel Editorial Board, The Orlando Sentinel, 7 Aug. 2025 Everyone came to play tonight and Wacha did an unbelievable job. — Jaylon Thompson, Kansas City Star, 7 Aug. 2025 The mayor and City Council continue to spend our money on unbelievable ideas that either fail or fall short. — U T Readers, San Diego Union-Tribune, 4 Aug. 2025 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

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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 14 Aug. 2025.

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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

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