- Definitions|2
- Thesaurus|364
- Abbreviations|0
30 entries under inferior topic. ×
| useless(adjective, wild, affect, inadequate) | |
| bootless(adjective, inadequate, useless, trivial) | |
| unavailing(adjective, inadequate, useless, trivial) | |
| vain(adjective, inadequate, feeble, useless) | |
| fruitless(adjective, inadequate, useless, trivial) | |
| futile(adjective, inadequate, feeble, useless) | |
| inefficient(adjective, weak, skill, affect) | |
| inoperative(adjective, weak, skill, inadequate) | |
| unsuccessful(adjective, inadequate, limited, feeble) | |
| abortive(adjective, inadequate, useless, trivial) | |
| impotent(adjective, weak, skill, inadequate) | |
| nugatory(adjective, inadequate, feeble, useless) | |
| feckless(adjective, inadequate, limited, feeble) | |
| worthless(adjective, inadequate, useless, trivial) | |
| null(adjective, inadequate, feeble, useless) | |
| unable(adjective, skill, inadequate, limited) | |
| unprofitable(adjective, inadequate, feeble, useless) | |
| idle(adjective, inadequate, feeble, useless) | |
| lame(adjective, inadequate, limited, feeble) | |
| forceless(adjective, inadequate, limited, feeble) |
For more, visit
Inefficacious on
Power Thesaurus
| APA | Smart Define. (2016). inefficacious thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/inefficacious/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "inefficacious thesaurus" https://smartdefine.org/inefficacious/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, inefficacious thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/inefficacious/thesaurus/synonyms>. |
| MLA | Smart Define. "inefficacious thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/inefficacious/thesaurus/synonyms> |