| trifling(adjective, poor, base, inferior, insignificant) | |
| trivial(adjective, poor, base, inferior, insignificant) | |
| unable(adjective, useless, unfit) | |
| unadaptable(adjective, inapplicable) | |
| unapt(adjective, useless, unfit) | |
| unbusinesslike(adjective, wild, unreasonable, useless, absurd) | |
| unconducive | |
| unessential(adjective, poor, base, inferior, insignificant) | |
| unfit for(adjective, useless, unfit) | |
| unfitted(adjective, useless, unfit) | |
| unhelpful | |
| unimportant(adjective, poor, base, inferior, insignificant) | |
| unmarketable(adjective, useless, unfit) | |
| unpurposed(adjective, weak, stupid, idle, useless) | |
| unrepaired | |
| unstylish(tired, bent, unfashionable, outdated, obsolete) | |
| unsuccessful | |
| unsuited(adjective, useless, unfit) | |
| untenable(adjective, useless, unfit) | |
| unused |
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Unusable on
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| APA | Smart Define. (2016). unusable thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/unusable/thesaurus/synonyms |
| Chicago | Smart Define. 2016. "unusable thesaurus" https://smartdefine.org/unusable/thesaurus/synonyms (accessed September 23, 2026). |
| Harvard | Smart Define 2016, unusable thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/unusable/thesaurus/synonyms>. |
| MLA | Smart Define. "unusable thesaurus" 29 March 2016. Web. 23 September 2026. <https://smartdefine.org/unusable/thesaurus/synonyms> |