67 entries under nonchalant topic. ×

6
uninvolved(adjective, concern, attitude, indifferent, detached)
5
cool(adjective, calm, informal, relaxed, indifferent)
5
forgetful(adjective, careless, cold, indifferent, forget)
5
insensitive(adjective, hard, indifferent, unfeeling, unsympathetic)
5
phlegmatic(adjective, indifferent, feelings, restrained, apathetic)
4
blase(adjective, calm, cool, relaxed, cold)
4
unmoved(adjective, cold, indifferent, dead, apathetic)
3
cold(adjective, calm, cool, relaxed, indifferent)
3
laid-back(adjective, calm, cool, informal, careless)
3
neutral(adjective, calm, cool, relaxed, cold)
3
reserved(adjective, indifferent, restrained, detached, casual)
2
callous(adjective, indifferent, apathetic, unfeeling, unconcerned)
2
calm(adjective, cool, relaxed, detached, casual)
2
easygoing(adjective, calm, cool, careless, relaxed)
2
supine(adjective, cold, indifferent, dead, unsympathetic)
1
blind(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
cursory(adjective, cool, careless, relaxed, indifferent)
1
easy(adjective, calm, cool, relaxed, indifferent)
1
hard-hearted(adjective, indifferent, detached, weary, distant)
1
hardened(adjective, hard, indifferent, unsympathetic, unkind)
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APASmart Define. (2015). incurious thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/incurious/thesaurus/synonyms
ChicagoSmart Define. 2015. "incurious thesaurus" https://smartdefine.org/incurious/thesaurus/synonyms (accessed September 29, 2026).
HarvardSmart Define 2015, incurious thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/incurious/thesaurus/synonyms>.
MLASmart Define. "incurious thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/incurious/thesaurus/synonyms>