3
together(adjective, calm, quiet, relaxed, casual)
3
trifling(adjective, calm, cool, relaxed, casual)
3
undemanding(adjective, feature, state, calm, mild)
3
unresponsive(adjective, cold, indifferent, detached, dead)
3
unwilling(adjective, indifferent)
3
urbane
2
breezy(adjective, feature, state, calm, cool)
2
buoyant(adjective, feature, state, trait, cheerful)
2
complacent(adjective, calm, cool, mild, relaxed)
2
glad(adjective, feature, state, trait)
2
agreeable
2
brash(adjective, reckless)
2
cavalier(adjective, careless, indifferent, casual, easygoing)
2
chill
2
contented(adjective, feature, state, trait)
2
cool-headed(adjective, calm)
2
cursory(adjective, cool, careless, relaxed, indifferent)
2
disregardful(adjective, careless, indifferent, casual, thoughtless)
2
even(adjective, calm)
2
everyday
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APASmart Define. (2015). nonchalant thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/nonchalant/thesaurus/synonyms
ChicagoSmart Define. 2015. "nonchalant thesaurus" https://smartdefine.org/nonchalant/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2015, nonchalant thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/nonchalant/thesaurus/synonyms>.
MLASmart Define. "nonchalant thesaurus" 9 December 2015. Web. 23 September 2026. <https://smartdefine.org/nonchalant/thesaurus/synonyms>