- Definitions|2
- Thesaurus|1.6k
- Abbreviations|0
| forceless(inferior, inadequate, limited, feeble, useless) | |
| fragile(adjective, weak, thin, delicate, shaky) | |
| frail(adjective, weak, thin, delicate, shaky) | |
| frustrate | |
| good-for-nothing | |
| hamstrung | |
| hog-tied(weak, skill, unfit, inept, powerless) | |
| improficient(adjective, well, incompetent, wasteful, unproductive) | |
| inattentive | |
| incapable of | |
| incapacitated(adjective, weak, skill, inadequate, incompetent) | |
| inconvenient(adjective, inexpedient) | |
| indecisive(adjective, weak, thin, delicate, inferior) | |
| inefficiently | |
| ineligible(inadequate, useless, incompetent, unqualified, inept) | |
| inexpedient(adjective, inexpedient) | |
| infertile | |
| infirm(adjective, weak, thin, delicate, feeble) | |
| innocuous(inferior, inadequate, limited, feeble, useless) | |
| insignificant |
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| APA | Smart Define. (2015). inefficient thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/inefficient/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "inefficient thesaurus" https://smartdefine.org/inefficient/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, inefficient thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/inefficient/thesaurus/synonyms>. |
| MLA | Smart Define. "inefficient thesaurus" 12 November 2015. Web. 22 September 2026. <https://smartdefine.org/inefficient/thesaurus/synonyms> |