3 entries under ineffective topic. ×
| inefficient(adjective, weak, sound, delicate, well) | |
| incompetent(adjective, strong, weak, delicate, qualified) | |
| inept(adjective, weak, delicate, expert, capable) |
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| APA | Smart Define. (2015). efficient thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/efficient/thesaurus/antonyms |
| Chicago | Smart Define. 2015. "efficient thesaurus" https://smartdefine.org/efficient/thesaurus/antonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2015, efficient thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/efficient/thesaurus/antonyms>. |
| MLA | Smart Define. "efficient thesaurus" 13 April 2015. Web. 23 September 2026. <https://smartdefine.org/efficient/thesaurus/antonyms> |