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.
The buildup for the game was unimaginable, according to Daniels. Matt Murschel, The Orlando Sentinel, 10 Mar. 2026 While certain periods of 19th-century Austin could be considered part of the Wild West, the past decades here have seen the casualty count from gun violence in Austin and statewide grow to previously unimaginable levels. Michael Barnes, Austin American Statesman, 7 Mar. 2026 And these robots might be the key to interplanetary travel and many other almost unimaginable advances. Ravin Gandhi, CNBC, 5 Mar. 2026 As Henry’s memory fades, Caroline must navigate the unimaginable journey of losing her lifelong partner while finding strength in a new friendship. Rosy Cordero, Deadline, 4 Mar. 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 14 Mar. 2026.

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