62 entries under adjective topic. ×
| lethal | |
| mischievous | |
| non-beneficial(gain, benefit, profit) | |
| noxious | |
| pernicious | |
| pestilent | |
| prejudicial | |
| punitive | |
| ruinous(devastating, disastrous) | |
| undesireworthy(good feelings, good emotions) | |
| unhealthy | |
| unrewarding(bad, disagreeable, working) | |
| unwholesome | |
| fatal | |
| menaceworthy | |
| nasty | |
| negative | |
| wicked | |
| bitchy | |
| contrary |
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| APA | Smart Define. (2016). beneficial thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/beneficial/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "beneficial thesaurus" https://smartdefine.org/beneficial/thesaurus/antonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, beneficial thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/beneficial/thesaurus/antonyms>. |
| MLA | Smart Define. "beneficial thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/beneficial/thesaurus/antonyms> |