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Definition of impossibility

impossibility

/ɪmˌpɑː.səˈbɪl.ə.t̬i/
im · pos · si · bil · i · ty
Adverb:impossibly
•
Plural:impossibilities
•
Adjective:impossible
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impossibility Lexical Profile

impossibility Game Scores & Validity

• noun

1

The state or quality of being impossible; inability to exist, happen, or be achieved.

Example

"The engineer explained the mathematical impossibility of designing a perpetual motion machine."

2

Something that cannot exist, occur, or be accomplished.

Example

"Finishing the entire renovation before the end of the week was a practical impossibility."

Synonyms
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Antonyms
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• Rhymes for impossibility

• Nearby Words

imposing
imposingly
imposition
impossibility
impossible
impossibly
impostor

Word Origin & Etymology

Borrowed in the late 14th century from Old French impossibilité, which derives from Late Latin impossibilitas, formed from the Latin adjective impossibilis ('not able to be done').

Cite this Entry

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