76 entries under cool topic. ×

3
impassive(adjective, calm, relaxed, detached)
2
insusceptible(adjective, blank, aloof, unemotional)
1
airy(adjective, calm, relaxed, detached)
1
aloof(adjective, calm, relaxed, detached)
1
apathetic(adjective, calm, relaxed, detached)
1
blase(adjective, calm, relaxed, detached)
1
callous(adjective, mean, hard, tough)
1
careless(adjective, calm, relaxed, detached)
1
cold(adjective, calm, relaxed, indifferent)
1
cold-blooded(adjective, blank, aloof, unemotional)
1
collected(adjective, calm, relaxed, casual)
1
composed(adjective, calm, relaxed, casual)
1
disimpassioned(adjective, calm, relaxed, detached)
1
dispassionate(adjective, calm, relaxed, casual)
1
dry(adjective, blank, aloof, unemotional)
1
effortless(adjective, calm, relaxed, detached)
1
emotionless(adjective, blank, aloof, unemotional)
1
hardened(adjective, blank, aloof, unemotional)
1
heartless(adjective, mean, hard, tough)
1
imperturbable(adjective, calm, relaxed, casual)
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APASmart Define. (2015). unimpressible thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unimpressible/thesaurus/synonyms
ChicagoSmart Define. 2015. "unimpressible thesaurus" https://smartdefine.org/unimpressible/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2015, unimpressible thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unimpressible/thesaurus/synonyms>.
MLASmart Define. "unimpressible thesaurus" 14 April 2015. Web. 30 September 2026. <https://smartdefine.org/unimpressible/thesaurus/synonyms>