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Idioms and Phrases with cool, calm, and collected

cool, calm, and collected

Calm and composed, self-possessed. For example, No matter what the board decides, you have to appear cool, calm, and collected in front of the stockholders. This alliterative synonym for cool as a cucumber dates from the late 1800s.

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