167 entries under casual topic. ×

8
regardless(adjective, careless, indifferent, detached)
8
relaxed(adjective, feature, state, calm, quiet)
8
remote(adjective, relaxed, cold, indifferent, detached)
7
reckless(adjective, feature, state, careless, indifferent)
6
blase(adjective, calm, cool, relaxed, cold)
6
collected(adjective, calm, quiet, cool, moderate)
6
composed(adjective, calm, quiet, cool, moderate)
6
disregardful(adjective, sharp, rude, careless, indifferent)
6
impersonal(adjective, temper, cold, indifferent, negative)
6
serene(adjective, feature, state, calm, quiet)
6
unthinking(adjective, sharp, rude, careless, indifferent)
6
unworried(adjective, feature, state, calm, indifferent)
5
irresponsible(adjective, feature, state, trait, careful)
5
laid-back(adjective, feature, state, calm, dull)
5
mindless(adjective, indifferent, careful, happy-go-lucky)
5
tranquil(adjective, feature, state, calm, quiet)
5
unruffled(adjective, calm, quiet, cool, moderate)
5
withdrawn(adjective, relaxed, cold, indifferent, detached)
4
absent-minded(noun, adjective, inattentive, happy-go-lucky)
4
cursory(adjective, careless, relaxed, indifferent)
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APASmart Define. (2015). unconcerned thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/unconcerned/thesaurus/synonyms
ChicagoSmart Define. 2015. "unconcerned thesaurus" https://smartdefine.org/unconcerned/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, unconcerned thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/unconcerned/thesaurus/synonyms>.
MLASmart Define. "unconcerned thesaurus" 22 October 2015. Web. 1 October 2026. <https://smartdefine.org/unconcerned/thesaurus/synonyms>