60 entries under unconcerned topic. ×

52
cool(adjective, feature, state, calm, temper)
45
insouciant(adjective, feature, state, calm, cool)
43
indifferent(adjective, feature, state, calm, cool)
33
apathetic(adjective, calm, cool, temper, relaxed)
31
casual(adjective, feature, state, calm, cool)
30
calm(adjective, feature, state, calm, cool)
23
aloof(adjective, calm, cool, temper, relaxed)
22
easy(adjective, feature, state, calm, cool)
20
impassive(adjective, calm, quiet, cool, temper)
19
dispassionate(adjective, calm, quiet, cool, relaxed)
19
relaxed(adjective, feature, state, calm, quiet)
17
disinterested(adjective, calm, cool, temper, relaxed)
15
detached(adjective, calm, quiet, cool, relaxed)
14
happy-go-lucky(adjective, feature, state, calm, care)
10
carefree(adjective, feature, state, calm, care)
10
collected(adjective, calm, cool, mild, relaxed)
10
neutral(adjective, calm, cool, relaxed, cold)
10
unperturbed(adjective, calm, quiet, cool, relaxed)
9
airy(adjective, nature, feature, state, calm)
8
blithe(adjective, feature, state, care, indifferent)
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APASmart Define. (2015). nonchalant thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/nonchalant/thesaurus/synonyms
ChicagoSmart Define. 2015. "nonchalant thesaurus" https://smartdefine.org/nonchalant/thesaurus/synonyms (accessed September 28, 2026).
HarvardSmart Define 2015, nonchalant thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/nonchalant/thesaurus/synonyms>.
MLASmart Define. "nonchalant thesaurus" 9 December 2015. Web. 28 September 2026. <https://smartdefine.org/nonchalant/thesaurus/synonyms>