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Inefficacious: alternatives and connections

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Inefficacious

Not efficacious; not having power to produce the effect desired; inadequate; incompetent; inefficient; impotent.

48 useful connections shown 10 reviewed relationships and 38 broader connections.
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Reviewed alternatives and contrasts

These links were deliberately created. Use the interchangeability score and guidance to judge whether a word will work in your sentence.

Derivationally related 2

Inefficacy 74% connected

Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of med…

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Inefficacy 74% connected

Want of power to produce the desired or proper effect; inefficiency; ineffectualness; futility; uselessness; fruitlessness; as, the inefficacy of med…

oewn 2023 15% interchangeable

Open English WordNet records a derivational relationship between these word forms.

Attribute 2

Efficacy 66% connected

Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting…

oewn 2023 0% interchangeable

Open English WordNet links these concepts through an attribute relationship.

Efficacy 66% connected

Power to produce effects; operation or energy of an agent or force; production of the effect intended; as, the efficacy of medicine in counteracting…

oewn 2023 0% interchangeable

Open English WordNet links these concepts through an attribute relationship.

See also 4

Ineffective 66% connected

Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Ineffective 66% connected

Not effective; ineffectual; futile; inefficient; useless; as, an ineffective appeal.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Ineffectual 66% connected

Not producing the proper effect; without effect; inefficient; weak; useless; futile; unavailing; as, an ineffectual attempt; an ineffectual expedient.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Ineffectual 66% connected

Not producing the proper effect; without effect; inefficient; weak; useless; futile; unavailing; as, an ineffectual attempt; an ineffectual expedient.

oewn 2023 0% interchangeable

Open English WordNet provides this as a see-also lexical relationship.

Antonym 2

Efficacious 94% connected

Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.

oewn 2023 0% interchangeable

Open English WordNet records these words as lexical opposites.

Efficacious 94% connected

Possessing the quality of being effective; productive of, or powerful to produce, the effect intended; as, an efficacious law.

oewn 2023 0% interchangeable

Open English WordNet records these words as lexical opposites.

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Words connected by meaning

Their definitions overlap or refer to similar ideas. Use these to widen your search, then compare the exact meanings.