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Synonyms

cool as a cucumber

Idioms  

  1. Calm and composed, self-possessed, as in Despite the mishap Margaret was cool as a cucumber. This idiom may be based on the fact that in hot weather the inside of cucumbers remains cooler than the air. [c. 1600] For a synonym, see cool, calm, and collected.

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Pegula described the inscrutable Rybakina as "cool as a cucumber".

From Barron's • Jan. 30, 2026

They found the faulty part, did the maintenance and we are now cool as a cucumber.

From Seattle Times • Aug. 11, 2023

Leclerc spun on his first lap in final qualifying but, cool as a cucumber, nailed it with his second and took his fourth pole of the season.

From BBC • May 22, 2022

With his smarts and his sorcery, Cumberbatch is cool as a cucumber.

From Salon • Mar. 26, 2022

I walked over to the woodpile cool as a cucumber.

From "Bud, Not Buddy" by Christopher Paul Curtis

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.

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