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efficacy

noun

Synonyms and Antonyms of efficacy

the power to produce a desired result
  • We questioned the efficacy of the alarms in actually preventing auto theft.
Synonyms of efficacy

edge, effectiveness, effectualness, efficaciousness, efficacity, efficiency, productiveness
Words Related to efficacy

ability, capability, capacity

potency, puissance, strength
Near Antonyms of efficacy

inability, inadequacy, inadequateness, incompetence, incompetency
Antonyms of efficacy

ineffectiveness, ineffectuality, ineffectualness, inefficiency

Learn More about efficacy

  1. Dictionary: Definition of efficacy Spanish Central: Translation of efficacy Nglish: Translation of efficacy for Spanish speakers Britannica English: Translation of efficacy for Arabic speakers Britannica.com: Encyclopedia article about efficacy

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