| nifty | |
| noble | |
| noncorrosive | |
| nondestructive | |
| nonfatal | |
| noninfectious | |
| nonlethal | |
| nonpoisonous | |
| nonpolluting | |
| nontoxic | |
| nonvenomous | |
| ok | |
| palliative | |
| par excellence | |
| passable | |
| perfect | |
| pleasure | |
| premium | |
| prime | |
| profit |
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| APA | Smart Define. (2016). ill thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ill/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "ill thesaurus" https://smartdefine.org/ill/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, ill thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ill/thesaurus/antonyms>. |
| MLA | Smart Define. "ill thesaurus" 24 March 2016. Web. 24 September 2026. <https://smartdefine.org/ill/thesaurus/antonyms> |