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Definition of unthinkable

unthinkable

/ʌnˈθɪŋkəbəl/
un · think · a · ble
Adverb:unthinkably
•
Plural:unthinkables
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unthinkable Lexical Profile

unthinkable Game Scores & Validity

• adjective

1

So unlikely, shocking, or morally unacceptable as to be impossible to consider seriously.

Example

"Abandoning the research project after years of dedicated work was completely unthinkable to the team."

Synonyms
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Antonyms
View all antonyms for unthinkable

• noun

1

Something that is too unlikely, shocking, or undesirable to be seriously contemplated (usually preceded by 'the').

Example

"Emergency planners must always prepare for the unthinkable when designing coastal flood defenses."

• Rhymes for unthinkable

• Nearby Words

unthankful
unthaw
unthawed
unthinkable
unthinkably
unthinking
unthinkingly

Cite this Entry

Wordmom. (2026). Definition of Unthinkable. In Wordmom Dictionary. Retrieved Nov 5, 2026, from https://wordmom.com/dictionary/unthinkable
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