Efficacy synonyms

ĕf'ĭ-kə-sē
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The property of being effective, of achieving results.
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The state of being productive.
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(Countable) A skill or competence in doing; mental power; talent; aptitude. [First attested in the early 17 th century.]
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The ratio of the energy delivered by a machine to the energy supplied for its operation.
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Any condition, circumstance, opportunity or means, particularly favorable to success, or to any desired end.
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The quality or condition of being potent.
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Dated form of impotence.
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The condition of being ineffective
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The quality of being useless
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(Countable) An inadequate quality; fault
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The condition or fact of being insufficient or falling short:
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An inefficient act, design, or procedure:
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The characteristic of being unproductive; lack of productiveness.
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(Cinematography) An illusion produced by technical means (as in "special effect")
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The state or condition of being effectual.
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The state or condition of being effectual.
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Quality of being efficacious.
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The power to affect, control or manipulate something or someone; the ability to change the development of fluctuating things such as conduct, thoughts or decisions.
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(Psychol.) An emotion or feeling attached to an idea, object, etc.
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Find another word for efficacy. In this page you can discover 19 synonyms, antonyms, idiomatic expressions, and related words for efficacy, like: effectiveness, productiveness, ability, efficiency, advantage, potency, impotency, inefficacy, uselessness, weakness and failure.