111 entries under adjective topic. ×
| void(noun, negative, inferior, inadequate) | |
| ineffective(inferior, inadequate, useless, unsound) | |
| zero(noun, slight, lower, informal) | |
| bad(false, unreasonable, unsound, unacceptable) | |
| invalid(void, unsound, worthless, unacceptable) | |
| null and void(expression, idiom, negative, inferior) | |
| useless(weak, slight, lower, value) | |
| barren(inadequate, limited, feeble, useless) | |
| nothing(noun, slight, lower, value) | |
| vain(inferior, inadequate, limited, feeble) | |
| worthless(slight, lower, value, inferior) | |
| zilch(noun, slight, lower, slang) | |
| empty(unsubstantial, nonexistent, unsubstantiality) | |
| ineffectual(inferior, inadequate, limited, feeble) | |
| inefficacious(inferior, inadequate, feeble, useless) | |
| negative(ineffectual, valueless, nothing, nonexistent) | |
| nonexistent(real, ineffectual, valueless, fictional) | |
| nugatory(slight, lower, value, inferior) | |
| vacant(unsubstantial, nonexistent, unsubstantiality) | |
| vacuous(unsubstantial, nonexistent, unsubstantiality) |
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| APA | Smart Define. (2015). null thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/null/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "null thesaurus" https://smartdefine.org/null/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, null thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/null/thesaurus/synonyms>. |
| MLA | Smart Define. "null thesaurus" 10 April 2015. Web. 22 September 2026. <https://smartdefine.org/null/thesaurus/synonyms> |