lose one's cool

see under keep one's cool.

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Nearby words

lose heart, lose it, lose no time, lose one's bearings, lose one's buttons, lose one's cool, lose one's grip, lose one's head, lose one's hear to, lose one's lunch, lose one's marbles

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