Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of med…
Open English WordNet records a derivational relationship between these word forms.
Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.
These links were deliberately created. Use the interchangeability score and guidance to judge whether a word will work in your sentence.
Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of med…
Open English WordNet records a derivational relationship between these word forms.
Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of med…
Open English WordNet records a derivational relationship between these word forms.
Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting…
Open English WordNet links these concepts through an attribute relationship.
Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting…
Open English WordNet links these concepts through an attribute relationship.
Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.
Open English WordNet provides this as a see-also lexical relationship.
Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.
Open English WordNet provides this as a see-also lexical relationship.
Not producing the proper effect; without effect; inefficient; weak; useless; futile; unavailing; as, an ineffectual attempt; an ineffectual expedient.
Open English WordNet provides this as a see-also lexical relationship.
Not producing the proper effect; without effect; inefficient; weak; useless; futile; unavailing; as, an ineffectual attempt; an ineffectual expedient.
Open English WordNet provides this as a see-also lexical relationship.
Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.
Open English WordNet records these words as lexical opposites.
Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.
Open English WordNet records these words as lexical opposites.
Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.
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