60 entries under adjective topic. ×
| bootless | |
| inefficacious | |
| vain(unsuccessful, arouse bad feelings) | |
| declining | |
| substandard | |
| unavailing(unsuccessful, arouse bad feelings) | |
| crumpled | |
| deceased | |
| deteriorating | |
| done for | |
| for nothing | |
| hopeless | |
| impotent | |
| in vain | |
| kaput | |
| no avail | |
| no purpose | |
| poor | |
| profitless | |
| unproductive |
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| APA | Smart Define. (2016). failed thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/failed/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "failed thesaurus" https://smartdefine.org/failed/thesaurus/synonyms (accessed September 21, 2026). |
| Harvard | Smart Define 2016, failed thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/failed/thesaurus/synonyms>. |
| MLA | Smart Define. "failed thesaurus" 24 March 2016. Web. 21 September 2026. <https://smartdefine.org/failed/thesaurus/synonyms> |