- Definitions|2
- Thesaurus|1.2k
- Abbreviations|0
| undone | |
| unrewarding(adjective, arouse bad feelings) | |
| bad(adjective, unhappy, inappropriate, adverse, damaging) | |
| balked | |
| beaten | |
| dead(adjective, meaningless, invalid, unsubstantiated, unsupported) | |
| doomed(adjective, bad, poor, miserable, failing) | |
| dreadful(adjective, unfortunate, grievous) | |
| fail(verb, failure) | |
| inefficient(adjective, weak, inferior, inadequate, limited) | |
| infelicitous(adjective, bad, poor, awkward, inappropriate) | |
| inoperative(adjective, inferior, inadequate, limited, feeble) | |
| insignificant(adjective, empty, worthless, hopeless, frivolous) | |
| lame(weak, inferior, inadequate, limited, feeble) | |
| losing(adjective, failing, vain, ineffective) | |
| manque | |
| nugatory(adjective, inferior, inadequate, limited, feeble) | |
| ruined(bad, poor, awkward, inappropriate, unfortunate) | |
| unfavorable(adjective, bad, poor, miserable, wretched) | |
| unpersuasive |
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| APA | Smart Define. (2016). unsuccessful thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/unsuccessful/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unsuccessful thesaurus" https://smartdefine.org/unsuccessful/thesaurus/synonyms (accessed September 27, 2026). |
| Harvard | Smart Define 2016, unsuccessful thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/unsuccessful/thesaurus/synonyms>. |
| MLA | Smart Define. "unsuccessful thesaurus" 24 March 2016. Web. 27 September 2026. <https://smartdefine.org/unsuccessful/thesaurus/synonyms> |