10
breezy(adjective, feature, state, calm, easy)
10
contingent(adjective, chance, vague, surprise, possible)
10
laid-back(adjective, feature, state, calm, cool)
10
light(adjective, feature, state, calm, cool)
10
unceremonious(adjective, simple, plain, informal, relaxed)
10
untroubled(adjective, feature, state, calm, cool)
9
carefree(adjective, feature, state, easy, care)
9
detached(adjective, calm, quiet, cool, relaxed)
9
effortless(adjective, calm, cool, smooth, easy)
9
fluky(adjective, chance, surprise, random, haphazard)
9
loose(adjective, calm, clear, open, cool)
9
passing(adjective, slight, detail, trivial, quick)
9
uncertain(adjective, uncertainty, chance, vague, erratic)
9
uninterested(adjective, quiet, relaxed, indifferent, detached)
8
natural(adjective, adverb, calm, open, smooth)
8
capricious(erratic, frivolous, random, haphazard)
8
easy-going(adjective, feature, state, calm, easy)
8
heedless(adjective, feature, state, careless, trait)
8
impromptu(adjective, free, simple, fake, natural)
8
inadvertent(adjective, careless, indifferent, surprise, sloppy)
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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>