Efficacy
audio of Efficacy
Efficacy [ef-i-kuh-see]

NOUN

NOUN

  • The ability to produce a desired or intended result.

  • The power to produce an effect.

Example

“I am a firm believer in the efficacy of my brother’s business.”

“The efficacy of the policy can bring a drastic change in the status quo.”

Synonyms

Effectiveness, Success, Productivity, Potency, Benefit, Adequacy, Competence, Virtue

Antonyms

Inefficiency, Failure, Unproductiveness, Weakness, Inadequacy, Ineffectiveness, Enervation

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