EFFICACY Synonyms: 22 Similar and Opposite Words

efficacy

noun

ˈe-fi-kə-sē

Definition of efficacy next

as in effectiveness

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

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Example Sentences

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Recent Examples of efficacy Cleaning units Cleaning units are a measurement of the efficacy of a pressure washer and are a result of multiplying the PSI by the GPM. —

Bestreviews, Mercury News, 17 Apr. 2026 However, soquelitinib is likely to stand out among its peers, due in part to its efficacy, according to Goldman Sachs. —

Liz Napolitano, CNBC, 17 Apr. 2026 Researchers are also questioning cannabis’ efficacy as medicine. —

William Garriott, The Conversation, 17 Apr. 2026 But the efficacy and popularity of GLP-1 drugs have also bred plenty of misconceptions. —

Julia Landwehr, Health, 17 Apr. 2026 See All Example Sentences for efficacy

Recent Examples of Synonyms for efficacy

Noun

This integration enhances operational effectiveness and allows forces to maintain strategic advantage in contested environments.

— Prabhat Ranjan Mishra, Interesting Engineering, 20 Apr. 2026
The real challenge is understanding which tech priorities actually move the business forward and strengthen team culture and effectiveness.

— Rolling Stone Culture Council, Rolling Stone, 20 Apr. 2026