196 entries under cool topic. ×

7
imperturbable(adjective, calm, relaxed, restrained)
7
laid-back(adjective, feature, state, calm, dull)
7
offhand(adjective, calm, careless, relaxed)
7
relaxed(adjective, feature, state, calm)
7
thick-skinned(adjective, calm, hard, careless)
7
untouched(adjective, calm, mean, hard)
6
easy(adjective, feature, state, calm, dull)
6
glacial(adjective, detached, hostile, unfriendly)
6
laid back(expression, adjective, feature, state, calm)
6
mean(adjective, dull, bad, hard)
6
undemonstrative(adjective, calm, dull, flat)
5
bored(adjective, beat, careless, weary)
5
disenchanted(adjective, nonchalant, dissatisfied, disappointed)
5
dry(adjective, calm, dull, cold)
5
flat(adjective, calm, dull, quiet)
5
matter-of-fact(adjective, calm, dull, cold)
5
resigned(adjective, calm, quiet, apathetic)
5
serene(adjective, feature, state, calm)
5
unexcited(adjective, calm, relaxed, restrained)
5
untroubled(adjective, feature, state, calm)
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APASmart Define. (2016). indifferent thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/indifferent/thesaurus/synonyms
ChicagoSmart Define. 2016. "indifferent thesaurus" https://smartdefine.org/indifferent/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, indifferent thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/indifferent/thesaurus/synonyms>.
MLASmart Define. "indifferent thesaurus" 23 March 2016. Web. 25 September 2026. <https://smartdefine.org/indifferent/thesaurus/synonyms>