16
frosty(adjective, severe, keen, sharp, intense)
16
glacial(adjective, person, severe, keen, sharp)
16
remote(adjective, attitude, informal, relaxed, cold)
16
steady(verb, adjective, calm, quiet, settle)
16
unperturbed(adjective, calm, quiet, sound, easy)
15
callous(adjective, calm, mean, hard, unpleasant)
15
temperate(adjective, calm, dull, quiet, weak)
15
allay(verb, stop, action, calm, control)
15
contemptuous(adjective, aloof, pretentious, arrogant, insolent)
15
splendid(adjective, good, great, pleasant, excellent)
15
unenthusiastic(adjective, calm, dull, indifferent, enthusiastic)
14
fine(adjective, good, weak, great, smooth)
14
brave(adjective, person, strong, tough, job)
14
easygoing(adjective, feature, state, calm, quiet)
14
emotionless(adjective, calm, dull, flat, cold)
14
hard(adjective, person, mean, unpleasant, cold)
14
marvelous(adjective, good, great, excellent, informal)
14
poise(noun, calm, temper, feelings, restraint)
14
self-controlled(adjective, calm, quiet, reasonable, moderate)
13
awesome(adjective, great, excellent, fine, superb)
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APASmart Define. (2016). cool thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/cool/thesaurus/synonyms
ChicagoSmart Define. 2016. "cool thesaurus" https://smartdefine.org/cool/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2016, cool thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/cool/thesaurus/synonyms>.
MLASmart Define. "cool thesaurus" 29 March 2016. Web. 21 September 2026. <https://smartdefine.org/cool/thesaurus/synonyms>