What is the opposite of efficaciousness?

Need antonyms for efficaciousness? Here's a list of opposite words from our thesaurus that you can use instead.

Contexts Opposite of quality of being effective or producing the desired result Opposite of a quality considered good morally, or that gives something special worth Noun ▲ Opposite of quality of being effective or producing the desired result ineffectiveness ineffectuality ineffectualness inefficiency failure impotence inability incapacity incompetence uselessness weakness inadequacy incapability powerlessness futility vanity hopelessness fruitlessness inefficacy helplessness unproductiveness infirmity unsuccessfulness carelessness disorganisationUK disorganizationUS ineptness sloppiness slackness inactivity idleness disability impotency lethargy feebleness ignorance otiosity unproductivity nonsuccess ineptitude inutility insufficiency incompetency unimportance laziness apathy lack enervation Noun ▲ Opposite of a quality considered good morally, or that gives something special worth failing shortcoming deficiency disadvantage failure fault foible inadequacy weakness demerit disvalue flaw limitation blemish defect vice drawback frailty imperfection weak point “His biggest failing is that he is willing to defend the King's transgressions, even when it is indefensible.” Find more words! 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Sentences with the word efficaciousness Words that rhyme with efficaciousness What is the plural of efficaciousness? What is the adverb for efficaciousness? What is the adjective for efficaciousness? What is the noun for efficaciousness? Use our Antonym Finder Nearby Words efficacities efficacity efficacy efficiencies efficiency efficient efficaciously efficacious efficacies effeteness effetely effete 15-letter Words Starting With e ef eff effi effic effica efficac efficaci efficacio efficaciou efficacious