32 entries under adjective topic. ×
| casual(deliberate, manner, nonchalant) | |
| informal(simple, casual) | |
| relaxed(verb, wild, stiff) | |
| intimate(friendly, private, devoted, personal) | |
| nonformal | |
| unceremonious(informal, polite) | |
| colloquial(informal, familiar, particular) | |
| unconventional(odd, different) | |
| chatty | |
| customary | |
| familiar | |
| free and easy(expression, idiom, relaxed) | |
| normal | |
| plain(vague, basic, unclear, ambiguous) | |
| unaffected | |
| unofficial | |
| crude(natural, unrefined) | |
| disorderly | |
| easy | |
| flexible |
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| APA | Smart Define. (2016). formal thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/formal/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "formal thesaurus" https://smartdefine.org/formal/thesaurus/antonyms (accessed September 26, 2026). |
| Harvard | Smart Define 2016, formal thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/formal/thesaurus/antonyms>. |
| MLA | Smart Define. "formal thesaurus" 10 March 2016. Web. 26 September 2026. <https://smartdefine.org/formal/thesaurus/antonyms> |