cool as a cucumber


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*cool as a cucumber

extremely calm; imperturbable. (*Also: as ~.) Joan felt nervous, but she acted as cool as a cucumber. The politician kept cool as a cucumber throughout the interview with the aggressive journalist.
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(as) cool as a cucumber

very calm and in control of your emotions When everything seems to be going wrong, she stays as cool as a cucumber.
See also: cool, cucumber

cool as a cucumber

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.
See also: cool, cucumber