154 entries under cool topic. ×

5
inexpressive(adjective, dull, detached, dead)
5
lukewarm(adjective, calm, temper, relaxed)
5
reticent(adjective, restrained, detached, blank)
5
self-controlled(adjective, calm, quiet, relaxed)
5
smooth(adjective, calm, quiet, relaxed)
5
undemonstrative(adjective, calm, restrained, detached)
4
easygoing(adjective, calm, dull, relaxed)
4
icy(adjective, temper, cold, negative)
4
mild(adjective, quiet, restrained, still)
4
moderate(adjective, calm, quiet, gentle)
4
remote(adjective, indifferent, restrained, detached)
4
reposeful(adjective, quiet, still, peaceful)
4
unimpassioned(adjective, calm, tough, restrained)
4
unimpressible(adjective, calm, relaxed, detached)
4
unperturbed(adjective, calm, relaxed, indifferent)
3
blase(adjective, calm, relaxed, cold)
3
easy(adjective, calm, dull, weak)
3
equable(adjective, calm, quiet, moderate)
3
hardened(adjective, hard, careless, indifferent)
3
inactive(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>