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

Synonyms of unimaginable

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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.
Those deaths, those tragedies, unimaginable losses, became my win. — Literary Hub, 20 Oct. 2026 The film includes extensive dramatizations immersing viewers in this almost unimaginable story. — Matthew Carey, Deadline, 20 Oct. 2026 Precision therapies can support diagnosis and personalize treatment options at a pace that would have been unimaginable just a decade ago. — Brad Kreick, Forbes.com, 16 Oct. 2026 As Jay tries to avoid getting crushed by the whale’s stomach in one quivering chamber or dissolved by acid in the next, Abrams comes up with reactions that feel as plausible as possible in a situation that’s totally unimaginable. — Alison Willmore, Vulture, 15 Oct. 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

Rhymes for unimaginable

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Browse Nearby Words

unilocular
unimaginable
unimaginative
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Cite this Entry

“Unimaginable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unimaginable. Accessed 28 Oct. 2026.

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