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1. Neither warm nor very cold; giving relief from heat
   "a cool autumn day"; "a cool room"; "cool summer dresses"; "cool drinks"; "a cool breeze"
    
2. Marked by calm self-control (especially in trying circumstances); unemotional
   "play it cool"; "keep cool";
   - coolheaded, nerveless
    
3. (colour) inducing the impression of coolness; used especially of greens and blues and violets
   "cool greens and blues and violets"
    
4. Psychologically cool and unenthusiastic; unfriendly, unresponsive or showing dislike
   "relations were cool and polite"; "a cool reception"; "cool to the idea of higher taxes"
    
5. (used of a number or sum) without exaggeration or qualification
   "a cool million bucks"
    
6. Fashionable and attractive at the time; often skilled or socially adept
   "he's a cool dude"; "that's cool"; "Mary's dress is really cool"; "it's not cool to arrive at a party too early"

1. Make cool or cooler
   "cool the food"; "cool down the food";
   - chill, cool down
    
2. Lose heat
   "The air cooled considerably after the thunderstorm";
   - chill, cool down
    
3. Lose intensity
   "His enthusiasm cooled considerably";
   - cool off, cool down

1. The quality of being at a refreshingly low temperature
   "the cool of early morning"
    
2. Great coolness and composure under strain
   "keep your cool";
   - aplomb, assuredness, poise, sang-froid

Derived forms: cooled, cooling, cooler, cools, coolest

See also: air-conditioned, air-cooled, caller, cold, composed, emotionalism, emotionality, fashionable, happening, precooled, stylish, temperature, unagitated, unemotional, unfriendly, unqualified, unresponsive, water-cooled

Type of: alter, calm, calmness, change, change state, cold, coldness, collectedness, composure, equanimity, frigidity, frigidness, low temperature, modify, turn, unflappability

Antonym: heat, warm

Encyclopedia: Cool, California Cool, Calm And Collected Cool Cool, CA Cool, Texas Cool, dry place Cool, Cool Water Cool, TX