4
tranquil(adjective, feature, state, calm, informal)
4
unaffected(adjective, unmoved, unchanged)
4
undisturbed(adjective, feature, state, trait)
4
unfussy(adjective, simple, easy, plain, relaxed)
4
unheeding(happy-go-lucky, slapdash)
4
unmethodical(careless, erratic, random, haphazard, arbitrary)
4
unmotivated
4
unofficial(adjective, informal)
4
unorganized(adjective, careless, arbitrary)
4
unreserved
4
unsure
4
vague(soft, tolerant, slack, lenient, remiss)
3
mild(adjective, feature, state, calm, weak)
3
affable
3
brief(quick, abrupt, hasty, superficial, transient)
3
cheery(adjective, feature, state, trait, cheerful)
3
colloquial(adjective, simple, relaxed, ordinary, familiar)
3
comfortable(adjective, easy, relaxed, familiar, unhurried)
3
conversational(adjective, talkative, colloquial)
3
cordial
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APASmart Define. (2015). casual thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/casual/thesaurus/synonyms
ChicagoSmart Define. 2015. "casual thesaurus" https://smartdefine.org/casual/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, casual thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/casual/thesaurus/synonyms>.
MLASmart Define. "casual thesaurus" 1 December 2015. Web. 26 September 2026. <https://smartdefine.org/casual/thesaurus/synonyms>