Inefficacious synonyms

ĭn-ĕf'ĭ-kā'shəs
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Not effective; not producing the desired effect; ineffectual
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Not producing the desired effect with a minimum use of energy, time, etc.; ineffective
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(Colloquial, of a person) unable to do well at a particular task or thing. Useless is mildly insulting.
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Not having the desired effect
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Producing or capable of producing a desired effect.
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Find another word for inefficacious. In this page you can discover 6 synonyms, antonyms, idiomatic expressions, and related words for inefficacious, like: ineffective, ineffectual, inefficient, useless, affect and efficacious.