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cool definition

cool (ko̵̅o̅l)

adjective

  1. moderately cold; neither warm nor very cold
  2. tending to reduce discomfort in warm or hot weather cool clothes
    1. not excited; calm; composed cool in an emergency
    2. ☆ marked by control of the emotions; restrained cool jazz
    3. Slang emotionally uninvolved; uncommitted; dispassionate
  4. showing dislike or indifference; not cordial a cool manner
  5. calmly impudent or bold
  6. not suggesting warmth: said of colors in the blue-green end of the spectrum
  7. Informal without exaggeration he won a cool thousand dollars
  8. ☆ Slang very good, pleasing, etc.; excellent

Etymology: ME & OE col < IE base *gel-, cold, to freeze > chill, cold, L gelu

adverb

in a cool manner

noun

  1. a cool place, time, thing, part, etc. the cool of the evening
  2. ☆ Slang cool, dispassionate attitude or manner

intransitive verb

to become cool or colder

Etymology: ME colien < OE colian, to cool

transitive verb

to make cool or colder

Related Forms:

cool Idioms

cool down

  1. to lower the body temperature, pulse, etc. after vigorous exercise
  2. to become less heated, passionate, agitated, angry, etc.

cool it

☆
Slang to calm down

cool off

  1. to calm down
  2. to lose enthusiasm, interest, etc.

cool out

☆ Slang
to make or become relaxed, calm, mollified, etc. soothing words cooled him out

play it cool

☆
Slang to exercise strict control over one's emotions; stay aloof, unenthusiastic, or uncommitted

Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.

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