- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
48 entries under inadequate topic. ×
| futile(adjective, weak, limited, feeble) | |
| abortive(adjective, inferior, limited, feeble) | |
| fruitless(adjective, weak, inferior, limited) | |
| ineffectual(adjective, weak, limited, feeble) | |
| useless(adjective, weak, failure, inferior) | |
| unavailing(adjective, weak, inferior, short) | |
| vain(adjective, weak, inferior, short) | |
| unproductive(adjective, weak, inferior, limited) | |
| bootless(adjective, inferior, limited, feeble) | |
| unprofitable(adjective, gain, inferior, feeble) | |
| unfruitful(adjective, inferior, limited, feeble) | |
| inefficacious(adjective, inferior, limited, feeble) | |
| worthless(adjective, inferior, limited, feeble) | |
| barren(adjective, feeble, useless, trivial) | |
| idle(adjective, weak, inferior, limited) | |
| impotent(adjective, weak, inferior, feeble) | |
| incompetent(adjective, weak, limited, feeble) | |
| inefficient(adjective, weak, inferior, limited) | |
| inoperative(adjective, inferior, limited, feeble) | |
| lame(weak, inferior, limited, feeble) |
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| APA | Smart Define. (2016). unsuccessful thesaurus. Retrieved September 30, 2026, from https://smartdefine.org/unsuccessful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsuccessful thesaurus" https://smartdefine.org/unsuccessful/thesaurus/synonyms (accessed September 30, 2026). |
| Harvard | Smart Define 2016, unsuccessful thesaurus, Smart Define, viewed 30 September, 2026, <https://smartdefine.org/unsuccessful/thesaurus/synonyms>. |
| MLA | Smart Define. "unsuccessful thesaurus" 24 March 2016. Web. 30 September 2026. <https://smartdefine.org/unsuccessful/thesaurus/synonyms> |