(a)coolinducing the impression of coolness; used especially of greens and blues and violets when referring to color“cool greens and blues and violets”, “the cool sound of rushing water”
(a)coolpsychologically cool and unenthusiastic; unfriendly or unresponsive or showing dislike“relations were cool and polite”, “a cool reception”, “cool to the idea of higher taxes”
(s)cool, coolheaded, nervelessmarked 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”
(s)all right, fine, o.k., ok, okay, hunky-dory, coolbeing satisfactory or in satisfactory condition“an all-right movie”, “the passengers were shaken up but are all right”, “is everything all right?”, “everything's fine”, “things are okay”, “dinner and the movies had been fine”, “another minute I'd have been fine”
(s)coolfashionable 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”