- Definitions|2
- Thesaurus|449
- Abbreviations|0
88 entries under noun topic. ×
| inadequacy(state, strong, weakness, condition) | |
| ineffectiveness(state, strong, weakness, condition) | |
| incapability(state, strong, weakness, condition) | |
| ineffectualness(state, strong, weakness, condition) | |
| ineffectuality(state, strong, weakness, condition) | |
| inefficiency(weakness, skill, failure, lack) | |
| incapacity(weakness, skill, failure, lack) | |
| incompetence(weakness, skill, failure, lack) | |
| inability(weakness, skill, lack, failing) | |
| inadequateness(defect, deficiency, inadequacy, shortage) | |
| ineptitude(weakness, skill, failure, lack) | |
| ineptness(weakness, skill, failure, shortcoming) | |
| uselessness(state, strong, weakness, condition) | |
| impotence(state, strong, weakness, condition) | |
| failure(defeat, blow, weakness, skill) | |
| inefficaciousness | |
| futility(inutility, uselessness, unsuccessfulness) | |
| weakness(informal, skill, failure, lack) | |
| amateurishness | |
| artlessness |
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Inefficacy on
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| APA | Smart Define. (2015). inefficacy thesaurus. Retrieved September 29, 2026, from https://smartdefine.org/inefficacy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inefficacy thesaurus" https://smartdefine.org/inefficacy/thesaurus/synonyms (accessed September 29, 2026). |
| Harvard | Smart Define 2015, inefficacy thesaurus, Smart Define, viewed 29 September, 2026, <https://smartdefine.org/inefficacy/thesaurus/synonyms>. |
| MLA | Smart Define. "inefficacy thesaurus" 14 April 2015. Web. 29 September 2026. <https://smartdefine.org/inefficacy/thesaurus/synonyms> |