unimaginable

adjective

un·​imag·​in·​able
ˌən-ə-ˈmaj-nə-bəl
-ˈma-jə- How to pronounce unimaginable (audio)
Synonyms of unimaginablenext
: not imaginable or comprehensible
unimaginable horror
technology that was unimaginable only a few years ago
unimaginably
ˌən-ə-ˈmaj-nə-blē
-ˈma-jə How to pronounce unimaginable (audio)
adverb

Examples of unimaginable in a Sentence

the unimaginable horrors of war a disaster of almost unimaginable proportions This technology would have been unimaginable five years ago.
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.
Some of its players, many with unimaginable talent and making many millions, go all out. Nick Canepa, San Diego Union-Tribune, 22 Feb. 2026 Andrew went home yesterday evening but has not been charged (in the UK, you can be arrested and detained by the police for 24 hours without being charged), but the once-unimaginable prospect of a member of the Royal Family behind bars now feels a distinct possibility. Max Goldbart, Deadline, 20 Feb. 2026 But the resulting product empowers everyone to accomplish feats that were unimaginable just a few years ago. Neil Chilson, Fortune, 20 Feb. 2026 After facing unimaginable loss last year when her family home was badly damaged in the Palisades Fire, Ellen Rudolph was faced with further tragedy months later when her husband died from cancer. Jasmine Viel, CBS News, 18 Feb. 2026 See All Example Sentences for unimaginable

Word History

First Known Use

1611, in the meaning defined above

Time Traveler
The first known use of unimaginable was in 1611

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Cite this Entry

“Unimaginable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unimaginable. Accessed 3 Mar. 2026.

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