- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
42 entries under limited topic. ×
| inept(adjective, weak, ability, inadequate) | |
| incompetent(adjective, weak, ability, thin, delicate) | |
| ineffectual(adjective, weak, thin, delicate, failure) | |
| useless(adjective, weak, failure, inferior, affect) | |
| unable(adjective, weak, skill, inadequate) | |
| futile(adjective, weak, inferior, inadequate) | |
| impotent(adjective, weak, thin, delicate, failure) | |
| inadequate(adjective, weak, thin, delicate, inferior) | |
| inferior(inadequate, feeble, useless, vain) | |
| unavailing(weak, failure, inferior, inadequate) | |
| unproductive(adjective, weak, slow, inadequate) | |
| unprofitable(adjective, inferior, inadequate, feeble) | |
| worthless(adjective, inferior, inadequate, feeble) | |
| abortive(failure, inferior, inadequate, feeble) | |
| bootless(failure, inferior, inadequate, feeble) | |
| feckless(inferior, inadequate, feeble, useless) | |
| fruitless(adjective, weak, failure, inferior, inadequate) | |
| lame(adjective, weak, thin, delicate, inferior) | |
| powerless(adjective, weak, thin, delicate, inferior) | |
| barren(inadequate, feeble, useless, vain) |
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Inefficient on
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| APA | Smart Define. (2015). inefficient thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/inefficient/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inefficient thesaurus" https://smartdefine.org/inefficient/thesaurus/synonyms (accessed September 25, 2026). |
| Harvard | Smart Define 2015, inefficient thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/inefficient/thesaurus/synonyms>. |
| MLA | Smart Define. "inefficient thesaurus" 12 November 2015. Web. 25 September 2026. <https://smartdefine.org/inefficient/thesaurus/synonyms> |