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.
That's the unbelievable streak that shocked grandparents in Folsom, California, where a trio of twin pregnancy announcements drew a reaction that went viral. — Kelsey Monstrola, USA Today, 1 Sep. 2026 Having the two scrimmages and playing pretty well there, and then the opening game with (Habersham Central), the environment was unbelievable here at Herndon Stadium. — Jack Leo, AJC.com, 1 Sep. 2026 What an unbelievable joy to have shared a sound stage with him and to engage with such a master talent. — Selome Hailu, Variety, 26 Aug. 2026 Emilio Pagán shut the door, and boos filled Oracle Park as the Reds celebrated their unbelievable victory. — Justice Delos Santos, Mercury News, 26 Aug. 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

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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 4 Sep. 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
Last Updated: - Updated example sentences
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