14
cursory(adjective, slight, detail, careless, relaxed)
14
devil-may-care(adjective, feature, state, soft, care)
14
half-assed
14
indifferent(adjective, feature, state, calm, cool)
13
cool(adjective, feature, state, calm, informal)
13
free(adjective, adverb, simple, easy, fake)
12
happy-go-lucky(adjective, feature, state, calm, care)
12
aloof(adjective, calm, cool, relaxed, indifferent)
12
apathetic(adjective, calm, cool, careless, relaxed)
12
hit-or-miss(adjective, careless, erratic, frivolous, random)
12
perfunctory(adjective, slight, detail, relaxed, indifferent)
12
unexpected(adjective, careless, chance, random, arbitrary)
12
unpremeditated(adjective, free, careless, chance, random)
11
airy(adjective, feature, state, calm, cool)
11
erratic(adjective, careless, chance, frivolous, random)
11
odd(adjective, chance, irregular, surprise, random)
11
spontaneous(adjective, calm, free, fake, plain)
11
unintentional(adjective, simple, natural, chance, impulsive)
10
aimless(adjective, careless, uncertainty, chance, random)
10
blithe(adjective, feature, state, easy, care)
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APASmart Define. (2015). casual thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/casual/thesaurus/synonyms
ChicagoSmart Define. 2015. "casual thesaurus" https://smartdefine.org/casual/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2015, casual thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/casual/thesaurus/synonyms>.
MLASmart Define. "casual thesaurus" 1 December 2015. Web. 25 September 2026. <https://smartdefine.org/casual/thesaurus/synonyms>