Synonyms for Cool

Top synonyms for “cool”: all right, aplomb, assuredness, chill, cool down, cool off, coolheaded, fine, and 22 more below.

Definitions

1. (noun)great coolness and composure under strain
   “keep your cool”
2. (noun)the quality of being at a refreshingly low temperature
   “the cool of early morning”
3. (verb)loose heat
   “The air cooled considerably after the thunderstorm”
4. (verb)lose intensity
   “His enthusiasm cooled considerably”
5. (verb)make cool or cooler
   “Chill the food”
6. (adjective)marked by calm self-control (especially in trying circumstances); unemotional
   “play it cool”
7. (adjective)fashionable and attractive at the time; often skilled or socially adept
   “he's a cool dude”
8. (adjective)used of a quantity or amount (especially of money) for emphasis
   “a cool million bucks”
9. (adjective)being satisfactory or in satisfactory condition
   “an all-right movie”
10. (adjective)neither warm nor very cold; giving relief from heat
    “a cool autumn day”
11. (adjective)psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike
    “relations were cool and polite”
12. (adjective)inducing the impression of coolness; used especially of greens and blues and violets when referring to color
    “cool greens and blues and violets”

Definitions sourced from Princeton WordNet (BSD license).