cool

neither warm or very cold; giving relief from heat

• “a cool autumn day”
• “a cool room”
• “cool summer dresses”
• “cool drinks”
• “a cool breeze”

marked by calm self-control (especially in trying circumstances); unemotional

• “play it cool”
• “keep cool”
• “stayed coolheaded in the crisis”
• “the most nerveless winner in the history of the tournament”

(color) inducing the impression of coolness; used especially of greens and blues and violets

• “cool greens and blues and violets”

psychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike

• “relations were cool and polite”
• “a cool reception”
• “cool to the idea of higher taxes”

used of a number or sum and meaning without exaggeration or qualification

• “a cool million bucks”

fashionable and attractive at the time; often skilled or socially adept

• “he”
• “;”
• “s cool”
• “Mary”
• “;”
• “s not cool to arrive at a party too early”

make cool or cooler

• “Chill the food”

loose heat

• “The air cooled considerably after the thunderstorm”

lose intensity

• “His enthusiasm cooled considerably”

the quality of being cool

• “the cool of early morning”

great coolness and composure under strain

• “keep your cool”