COOL

I. adjective see: cold Date: before 12th century moderately cold ; lacking in warmth, 2. marked by steady dispassionate calmness and self-control , lacking ardor or friendliness , marked by restrained emotion and the frequent use of counterpoint, free from tensions or violence , 3. — used as an intensive marked by deliberate effrontery or lack of due respect or discretion , facilitating or suggesting relief from heat , 6. producing an impression of being ~, relatively lacking in timbre or resonance, 7. slang very good ; excellent , fashionable , hip , ~ish adjective ~ly also ~y adverb ~ness noun Synonyms: see: ~ II. verb Date: before 12th century intransitive verb to become ~ ; lose heat or warmth , to lose ardor or passion , transitive verb to make ~ ; impart a feeling of ~ness to , 2. to moderate the heat, excitement, or force of ; calm , to slow or lessen the growth or activity of, III. noun Date: 15th century a ~ time, place, or situation , 2. absence of excitement or emotional involvement ; detachment , poise , composure , hipness , IV. adverb Date: 1841 in a casual and nonchalant manner