unthinkable
adjective
un·think·able
ˌən-ˈthiŋ-kə-bəl 
1
: not capable of being grasped by the mind
2
: being contrary to what is reasonable, desirable, or probable : being out of the question
Examples of unthinkable in a Sentence
to most people it seemed unthinkable that such a gentle man could be guilty of such awful crimes
Recent Examples on the Web
This was once an unthinkable security posture.
—
Brian Contos, Forbes.com, 18 June 2026
Imagining Chinese revolutionary leader Mao Zedong brainstorming with President Ford and other leaders would have been unthinkable.
—John Leicester, Los Angeles Times, 15 June 2026
Although Newcastle need to become less reliant on their talisman, allowing Guimaraes to depart would be almost unthinkable, given his importance and Tonali’s unclear future.
—Chris Waugh, New York Times, 12 June 2026
Despite such evidence that past population peaks are likely never to return for certain communities, the idea of a city planning for anything other than growth is almost unthinkable in public discourse.
—Christopher Briem, The Conversation, 12 June 2026
See All Example Sentences for unthinkable
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Brian Contos, Forbes.com, 18 June 2026
Imagining Chinese revolutionary leader Mao Zedong brainstorming with President Ford and other leaders would have been unthinkable.
—John Leicester, Los Angeles Times, 15 June 2026
Although Newcastle need to become less reliant on their talisman, allowing Guimaraes to depart would be almost unthinkable, given his importance and Tonali’s unclear future.
—Chris Waugh, New York Times, 12 June 2026
Despite such evidence that past population peaks are likely never to return for certain communities, the idea of a city planning for anything other than growth is almost unthinkable in public discourse.
—Christopher Briem, The Conversation, 12 June 2026
See All Example Sentences for unthinkable
Cite this Entry
“Unthinkable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unthinkable. Accessed 20 Jun. 2026.
Copy CitationKids Definition
unthinkable
adjective
un·think·able
ˌən-ˈthiŋ-kə-bəl
ˈən-
: not to be thought of or considered as possible
unthinkable cruelty
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