24 entries under adjective topic. ×
| inoperative | |
| nonoperational | |
| dormant | |
| ineffective | |
| useless | |
| worthless | |
| fruitless | |
| egotistic | |
| egotistical | |
| empty | |
| failed | |
| feckless | |
| futile | |
| impossible | |
| impotent | |
| inadequate | |
| incapable | |
| incompetent | |
| inefficacious | |
| inefficient |
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| APA | Smart Define. (2015). operational thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/operational/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "operational thesaurus" https://smartdefine.org/operational/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2015, operational thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/operational/thesaurus/antonyms>. |
| MLA | Smart Define. "operational thesaurus" 14 April 2015. Web. 24 September 2026. <https://smartdefine.org/operational/thesaurus/antonyms> |