42 entries under vain topic. ×
| ineffective(adjective, inferior, inadequate, useless, unsound) | |
| useless(adjective, weak, slight, lower, value) | |
| worthless(adjective, slight, lower, value, inferior) | |
| ineffectual(adjective, inferior, inadequate, limited, feeble) | |
| nugatory(adjective, slight, lower, value, inferior) | |
| inoperative(adjective, inferior, inadequate, limited, feeble) | |
| futile(adjective, inferior, inadequate, limited, feeble) | |
| fruitless(adjective, inferior, inadequate, limited, feeble) | |
| inferior(inadequate, limited, feeble, useless) | |
| unprofitable(inferior, inadequate, limited, feeble, useless) | |
| abortive(inferior, inadequate, limited, feeble, useless) | |
| anticlimactic(inferior, inadequate, limited, feeble, useless) | |
| bootless(inferior, inadequate, limited, feeble, useless) | |
| defeasible(inferior, inadequate, limited, feeble, useless) | |
| feckless(inferior, inadequate, limited, feeble, useless) | |
| feeble(inadequate, limited, useless, unsuccessful) | |
| forceless(adjective, inferior, inadequate, limited, feeble) | |
| idle(inferior, inadequate, limited, feeble, useless) | |
| impotent(inferior, inadequate, limited, feeble, useless) | |
| inadequate(limited, feeble, useless, unsuccessful) |
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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> |