69 entries under nonchalant topic. ×

2
undisturbed(adjective, indifferent, undaunted, unworried)
2
unsympathetic(adjective, indifferent, inattentive, uninterested)
2
untroubled(adjective, calm, cool, relaxed, indifferent)
2
unworried(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
blind(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
blithe(adjective, indifferent, cheerful, unsympathetic, easygoing)
1
carefree apathetic(expression, indifferent, unsympathetic, inattentive, uninterested)
1
deaf(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
forgetful(adjective, slow, careless, indifferent, casual)
1
hard-hearted(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
mellow(adjective, calm, cool, relaxed, detached)
1
neutral(adjective, calm, dull, cool, relaxed)
1
oblivious(adjective, indifferent, casual, thoughtless, unsympathetic)
1
self-centered(adjective, indifferent, unsympathetic, inattentive, uninterested)
1
uninvolved(adjective, indifferent, detached, casual, unsympathetic)
1
unperturbed(adjective, calm, cool, relaxed, indifferent)
1
unruffled(adjective, calm, cool, relaxed, indifferent)
1
withdrawn(adjective, cool, relaxed, detached, casual)
0
breezy(cool, relaxed, easygoing, laid-back)
0
carefree(adjective, indifferent, cheerful, easygoing)
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APASmart Define. (2016). lackadaisical thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/lackadaisical/thesaurus/synonyms
ChicagoSmart Define. 2016. "lackadaisical thesaurus" https://smartdefine.org/lackadaisical/thesaurus/synonyms (accessed September 30, 2026).
HarvardSmart Define 2016, lackadaisical thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/lackadaisical/thesaurus/synonyms>.
MLASmart Define. "lackadaisical thesaurus" 2 March 2016. Web. 30 September 2026. <https://smartdefine.org/lackadaisical/thesaurus/synonyms>