256 entries under indifferent topic. ×

10
inattentive(noun, adjective, dull, sharp, rude)
10
languid(adjective, feature, state, calm, dull)
10
offhand(adjective, calm, cool, mild, careless)
10
unaffected(adjective, hard, temper, careless, cold)
10
untroubled(adjective, feature, state, calm, quiet)
9
carefree(adjective, feature, state, calm, mild)
9
lethargic(adjective, calm, dull, weak, easy)
9
neutral(adjective, calm, quiet, cool, moderate)
9
passive(adjective, calm, dull, careless)
8
blithe(adjective, feature, state, trait)
8
cold-blooded(adjective, mean, hard, cool, temper)
8
half-hearted(adjective, temper, cold, negative)
8
heartless(adjective, mean, hard, cool, unpleasant)
8
inconsiderate(adjective, sharp, rude, careless)
8
oblivious(noun, adjective, casual, sloppy)
8
regardless(adjective, careless, detached, casual)
8
relaxed(adjective, feature, state, calm, quiet)
8
remote(adjective, relaxed, cold, detached)
8
spiritless(adjective, dull, hard, cool, weak)
7
frigid(adjective, calm, mean, hard, cool)
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APASmart Define. (2015). unconcerned thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/unconcerned/thesaurus/synonyms
ChicagoSmart Define. 2015. "unconcerned thesaurus" https://smartdefine.org/unconcerned/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, unconcerned thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/unconcerned/thesaurus/synonyms>.
MLASmart Define. "unconcerned thesaurus" 22 October 2015. Web. 29 September 2026. <https://smartdefine.org/unconcerned/thesaurus/synonyms>