- Definitions|2
- Thesaurus|449
- Abbreviations|0
88 entries under noun topic. ×
| defect(deficiency, imperfection, limitation, inadequacy) | |
| disability | |
| disqualification(weakness, skill, failure, shortcoming) | |
| frailty(weakness, skill, failure, shortcoming) | |
| fruitlessness | |
| hopelessness(weakness, inability, helplessness, subjection) | |
| imperfection(defect, inadequacy, shortage, inability) | |
| lack(weakness, skill, failure, failing) | |
| necessity(weakness, skill, failure, shortcoming) | |
| shortcoming(weakness, skill, failure, lack) | |
| unfitness(weakness, skill, failure, lack) | |
| bitter pill(expression, defeat, blow, failure) | |
| blind alley(expression, defeat, blow, failure) | |
| blunder(defeat, blow, failure, mistake) | |
| bringdown(defeat, blow, failure, mistake) | |
| bummer(defeat, blow, failure, mistake) | |
| bust(defeat, blow, failure, mistake) | |
| calamity(defeat, blow, failure, mistake) | |
| defenselessness(weakness, hopelessness, helplessness, subjection) | |
| disaster(defeat, blow, failure, mistake) |
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| APA | Smart Define. (2015). inefficacy thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/inefficacy/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inefficacy thesaurus" https://smartdefine.org/inefficacy/thesaurus/synonyms (accessed October 1, 2026). |
| Harvard | Smart Define 2015, inefficacy thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/inefficacy/thesaurus/synonyms>. |
| MLA | Smart Define. "inefficacy thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/inefficacy/thesaurus/synonyms> |