EFFICIENCY Synonyms: 22 Similar and Opposite Words

efficiency

noun

i-ˈfi-shən-sē

Definition of efficiency

as in efficacy

the power to produce a desired result the proven efficiency of meditation in reducing stress within the company's workforce

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Example Sentences

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Recent Examples of efficiency If the answer is yes, the efficiency gain may be a competitive loss in disguise. — Matt Alt, Fortune, 18 Oct. 2026 In its latest Global Financial Stability Report, published Tuesday, the IMF acknowledged hedge funds' role in supporting market liquidity and efficiency. — Hugh Leask, CNBC, 18 Oct. 2026 One of the reasons behind the brain's remarkable efficiency is that memory and processing take place in the same physical real estate. — New Atlas, 18 Oct. 2026 Ramallo said Micah Reed, who started the online petition, used six times the power of the median customer, and the utility has offered him an energy efficiency audit, but Reed hasn’t taken them up on it. — Los Angeles Times, 17 Oct. 2026 See All Example Sentences for efficiency

Recent Examples of Synonyms for efficiency

Noun

Hope Florida Foundation got a new board and filed tax returns, but criticisms of its efficacy still dog its leaders.

— Christopher Spata, Miami Herald, 17 Oct. 2026
In oncology, where treatment efficacy hinges on precise, patient‑specific data, even a small AI hallucination, such as a mistimed test, can misdirect care.

— Brad Kreick, Forbes.com, 16 Oct. 2026

Definition of efficacy

Noun

The idea would be to equip all parties, from payers to providers to patients, with insights into effectiveness, cost, and value.

— Dana P. Goldman, STAT, 22 Oct. 2026
Other topical treatments—such as retinoids, peptides, and vitamin C—are backed by years of research on safety and effectiveness.

— Ashley Abramson, Allure, 22 Oct. 2026