13
compose(verb, calm, control, order, quiet)
13
coolness(noun, calm, strength, ability, feelings)
13
groovy(adjective, good, great, reasonable, excellent)
13
nifty(adjective, good, great, excellent, slang)
13
smooth(verb, adjective, calm, quiet, weak)
13
stolid(adjective, calm, quiet, indifferent, casual)
13
swell(adjective, good, kind, great, pleasant)
12
temper(noun, verb, action, calm, control)
12
aplomb(noun, calm, temper, feelings, balance)
12
assuage(verb, action, calm, control, order)
12
boss(adjective, bad, tough, top, excellent)
12
composure(noun, calm, temper, informal, feelings)
12
fabulous(adjective, good, great, excellent, fine)
12
fearless(adjective, person, strong, tough, bold)
12
gentle(adjective, calm, quiet, weak, kind)
12
hostile(adjective, person, cold, feelings, negative)
12
hot(adjective, good, great, slang, informal)
12
impudent(adjective, smart, informal, rude, restrained)
12
insensitive(adjective, mean, hard, temper, unpleasant)
12
lackadaisical(adjective, calm, temper, relaxed, cold)
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APASmart Define. (2016). cool thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/cool/thesaurus/synonyms
ChicagoSmart Define. 2016. "cool thesaurus" https://smartdefine.org/cool/thesaurus/synonyms (accessed September 20, 2026).
HarvardSmart Define 2016, cool thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/cool/thesaurus/synonyms>.
MLASmart Define. "cool thesaurus" 29 March 2016. Web. 20 September 2026. <https://smartdefine.org/cool/thesaurus/synonyms>