- Definitions|2
- Thesaurus|2.6k
- Abbreviations|0
22 entries under strong topic. ×
| powerful(adjective, fit, effective, successful) | |
| effective(adjective, fit, successful, productive) | |
| effectual(adjective, fit, successful) | |
| efficient(adjective, weak, fit, delicate) | |
| potent(adjective, weak, soft, fit) | |
| successful(adjective, fit) | |
| competent(adjective, fit, successful) | |
| fruitful(adjective, fit, successful) | |
| productive(adjective, fit, successful) | |
| able(adjective, fit, slow, inadequate) | |
| profitable(adjective, fit, successful) | |
| useful(adjective, fit, successful) | |
| worthwhile(adjective, fit, successful) | |
| adequate(adjective, fit, successful) | |
| capable(adjective, fit, successful) | |
| sufficient(adjective, fit, successful) | |
| dexterous(adjective, fit, successful) | |
| expert(adjective, fit, successful) | |
| skillful(adjective, fit, successful) | |
| fit(adjective, successful) |
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Ineffective on
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| APA | Smart Define. (2016). ineffective thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ineffective/thesaurus/antonyms |
| Chicago | Smart Define. 2016. "ineffective thesaurus" https://smartdefine.org/ineffective/thesaurus/antonyms (accessed September 24, 2026). |
| Harvard | Smart Define 2016, ineffective thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ineffective/thesaurus/antonyms>. |
| MLA | Smart Define. "ineffective thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/ineffective/thesaurus/antonyms> |