154 entries under cool topic. ×

3
indurated(adjective, hard, careless, indifferent)
3
inexcitable(adjective, blank, aloof, unemotional)
3
negligent(adjective, calm, relaxed, cold)
3
sober(adjective, calm, tough, rational)
3
thick-skinned(adjective, calm, hard, careless)
3
toneless(adjective, temper, cold, negative)
2
careless(adjective, calm, dull, hard)
2
chill(adjective, restrained, detached, blank)
2
halcyon(adjective, quiet, still, peaceful)
2
hushed(adjective, quiet, still, peaceful)
2
laid-back(adjective, calm, dull, quiet)
2
long-suffering(adjective, calm, restrained, tolerant)
2
motionless(adjective, quiet, secure, still)
2
nonemotional(adjective, detached, blank, sober)
2
pacific(adjective, calm, quiet, restrained)
2
patient(adjective, calm, quiet, moderate)
2
philosophic(adjective, calm, restrained, tolerant)
2
reposing(adjective, quiet, still, peaceful)
2
self-possessed(adjective, calm, quiet, moderate)
2
slow(adjective, dull, quiet, weak)
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APASmart Define. (2015). impassive thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/impassive/thesaurus/synonyms
ChicagoSmart Define. 2015. "impassive thesaurus" https://smartdefine.org/impassive/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, impassive thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/impassive/thesaurus/synonyms>.
MLASmart Define. "impassive thesaurus" 14 April 2015. Web. 25 September 2026. <https://smartdefine.org/impassive/thesaurus/synonyms>