4 entries under suitable topic. ×
| improper(adjective, vulgar, immoral) | |
| inappropriate(adjective, proper, unsuitable, fitting) | |
| inept(adjective, improper, expert, capable) | |
| untoward(adjective, improper) |
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| APA | Smart Define. (2016). proper thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/proper/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "proper thesaurus" https://smartdefine.org/proper/thesaurus/antonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2016, proper thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/proper/thesaurus/antonyms>. |
| MLA | Smart Define. "proper thesaurus" 31 March 2016. Web. 22 September 2026. <https://smartdefine.org/proper/thesaurus/antonyms> |