128 entries under cool topic. ×

45
insouciant(adjective, feature, state, calm)
43
indifferent(adjective, feature, state, calm)
36
unconcerned(adjective, feature, state, calm)
33
apathetic(adjective, calm, temper, relaxed)
31
casual(adjective, feature, state, calm)
30
calm(adjective, feature, state, calm)
28
uncaring(adjective, cold, indifferent, attitude, unemotional)
23
aloof(adjective, calm, temper, relaxed)
22
easy(adjective, feature, state, calm)
20
easygoing(adjective, feature, state, calm)
20
impassive(adjective, calm, quiet, temper)
19
dispassionate(adjective, calm, quiet, relaxed)
19
lukewarm(adjective, calm, temper, relaxed)
19
relaxed(adjective, feature, state, calm, quiet)
19
serene(adjective, feature, state, calm, quiet)
18
unemotional(adjective, calm, relaxed, cold)
17
disinterested(adjective, calm, temper, relaxed)
15
composed(adjective, calm, mild, relaxed)
15
detached(adjective, calm, quiet, relaxed)
15
negligent(adjective, feature, state, calm)
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APASmart Define. (2015). nonchalant thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/nonchalant/thesaurus/synonyms
ChicagoSmart Define. 2015. "nonchalant thesaurus" https://smartdefine.org/nonchalant/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2015, nonchalant thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/nonchalant/thesaurus/synonyms>.
MLASmart Define. "nonchalant thesaurus" 9 December 2015. Web. 24 September 2026. <https://smartdefine.org/nonchalant/thesaurus/synonyms>