- Definitions|2
- Thesaurus|2.5k
- Abbreviations|0
| formal(adjective, correct, stiff, affected, established) | |
| stiff(adjective, standoffish, formal, ceremonious) | |
| ceremonious(adjective, ritual, formal) | |
| official | |
| proper | |
| nice | |
| prim(adjective, particular, fussy) | |
| ceremonial(adjective, ritual, formal) | |
| conventional | |
| dressy(adjective, fashionable, formal) | |
| nominal | |
| prescribed | |
| punctilious(adjective, careful, finicky) | |
| regular | |
| rigid | |
| starchy | |
| magic | |
| stuffy(adjective, prim) | |
| black-tie | |
| bohemian |
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| APA | Smart Define. (2016). informal thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/informal/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "informal thesaurus" https://smartdefine.org/informal/thesaurus/antonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2016, informal thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/informal/thesaurus/antonyms>. |
| MLA | Smart Define. "informal thesaurus" 29 February 2016. Web. 25 September 2026. <https://smartdefine.org/informal/thesaurus/antonyms> |