- Definitions|1
- Thesaurus|132
- Abbreviations|0
| worthless(adjective, inferior, inadequate, feeble) | |
| forceless(adjective, inferior, inadequate, limited) | |
| fruitless(adjective, inferior, inadequate, limited) | |
| inoperative(adjective, false, inferior, inadequate) | |
| nugatory(adjective, false, inferior, inadequate) | |
| unfruitful(adjective, inferior, inadequate, limited) | |
| unsuccessful(adjective, inferior, inadequate, limited) | |
| useless(adjective, inferior, inadequate, limited) | |
| vain(adjective, inferior, inadequate, feeble) |
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| APA | Smart Define. (2015). null and void thesaurus. Retrieved September 20, 2026, from https://smartdefine.org/null_and_void/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "null and void thesaurus" https://smartdefine.org/null_and_void/thesaurus/synonyms (accessed September 20, 2026). |
| Harvard | Smart Define 2015, null and void thesaurus, Smart Define, viewed 20 September, 2026, <https://smartdefine.org/null_and_void/thesaurus/synonyms>. |
| MLA | Smart Define. "null and void thesaurus" 10 April 2015. Web. 20 September 2026. <https://smartdefine.org/null_and_void/thesaurus/synonyms> |