- Definitions|3
- Thesaurus|4.7k
- Abbreviations|0
| tranquil(adjective, feature, state, calm, informal) | |
| unaffected(adjective, unmoved, unchanged) | |
| undisturbed(adjective, feature, state, trait) | |
| unfussy(adjective, simple, easy, plain, relaxed) | |
| unheeding(happy-go-lucky, slapdash) | |
| unmethodical(careless, erratic, random, haphazard, arbitrary) | |
| unmotivated | |
| unofficial(adjective, informal) | |
| unorganized(adjective, careless, arbitrary) | |
| unreserved | |
| unsure | |
| vague(soft, tolerant, slack, lenient, remiss) | |
| mild(adjective, feature, state, calm, weak) | |
| affable | |
| brief(quick, abrupt, hasty, superficial, transient) | |
| cheery(adjective, feature, state, trait, cheerful) | |
| colloquial(adjective, simple, relaxed, ordinary, familiar) | |
| comfortable(adjective, easy, relaxed, familiar, unhurried) | |
| conversational(adjective, talkative, colloquial) | |
| cordial |
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| APA | Smart Define. (2015). casual thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/casual/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "casual thesaurus" https://smartdefine.org/casual/thesaurus/synonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2015, casual thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/casual/thesaurus/synonyms>. |
| MLA | Smart Define. "casual thesaurus" 1 December 2015. Web. 26 September 2026. <https://smartdefine.org/casual/thesaurus/synonyms> |