Synonyms|618Antonyms|255|Broader|10Narrower|13Related|1.7k

336 entries under adjective topic. ×

2
enfeebled(weak, inadequate, incompetent, inept)
2
ill-suited(inadequate, useless, inappropriate, unfit)
2
implausible(poor, inadequate, ineffectual, toothless)
2
improper(inadequate, useless, inappropriate, unfit)
2
inane
2
inapplicable(inadequate, useless, inappropriate, unfit)
2
inappropriate(inadequate, useless, unfit, unsuitable)
2
incapacitated(weak, inadequate, useless, unfit)
2
inconclusive(poor, inadequate, ineffectual, toothless)
2
incorrect(inadequate, useless, inappropriate, unsuitable)
2
ineligible(weak, inadequate, useless, unfit)
2
irresponsible(weak, careless, feeble)
2
limited(poor, inferior, inadequate, feeble)
2
no-good(poor, base, inferior, insignificant)
2
no avail(verb, expression, arouse bad feelings)
2
not effective(expression, idiom, useless, unpolluted)
2
not equal to(expression, idiom, weak, inadequate)
2
not up to(expression, idiom, weak, inadequate)
2
null and void(expression, idiom, inferior, inadequate)
2
paralyzed(weak, inadequate, incompetent, inept)
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APASmart Define. (2016). ineffective thesaurus. Retrieved September 24, 2026, from https://smartdefine.org/ineffective/thesaurus/synonyms
ChicagoSmart Define. 2016. "ineffective thesaurus" https://smartdefine.org/ineffective/thesaurus/synonyms (accessed September 24, 2026).
HarvardSmart Define 2016, ineffective thesaurus, Smart Define, viewed 24 September, 2026, <https://smartdefine.org/ineffective/thesaurus/synonyms>.
MLASmart Define. "ineffective thesaurus" 29 March 2016. Web. 24 September 2026. <https://smartdefine.org/ineffective/thesaurus/synonyms>