- Definitions|2
- Thesaurus|671
- Abbreviations|0
| indelicacy | |
| inertia(calm, ease, content, genuineness, unaffectedness) | |
| inertness(calm, ease, content, genuineness, unaffectedness) | |
| intimacy(noun, informality) | |
| intimated | |
| knack(ease, familiarity) | |
| lack of ceremony(expression, idiom, ease, familiarity) | |
| lack of formality(expression, idiom, ease, familiarity) | |
| laxity(noun, neglect, carelessness) | |
| laxness(noun, neglect, carelessness) | |
| leisure(calm, ease, content, genuineness, unaffectedness) | |
| license | |
| lightheartedness | |
| neglectfulness(noun, neglect, carelessness) | |
| neighbor | |
| occasional | |
| occasionally | |
| officious | |
| openness(noun, sincerity, genuineness, artlessness, unaffectedness) | |
| oversight(noun, neglect, carelessness) |
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| APA | Smart Define. (2015). casualness thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/casualness/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "casualness thesaurus" https://smartdefine.org/casualness/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2015, casualness thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/casualness/thesaurus/synonyms>. |
| MLA | Smart Define. "casualness thesaurus" 13 April 2015. Web. 27 September 2026. <https://smartdefine.org/casualness/thesaurus/synonyms> |