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 Both aircraft use Jaunt’s Slowed-Rotor Compound configuration, which shifts more lift to the wing during forward flight to improve cruise efficiency while retaining vertical takeoff and landing capability. — Aamir Khollam, Interesting Engineering, 3 Aug. 2026 And only once, in four seasons with Riley, has USC fallen out of the top seven nationally in that efficiency rate. — Ryan Kartje, Los Angeles Times, 3 Aug. 2026 As a result, our focus will be on forward guidance, end market commentary, and any new opportunities the team may have discovered since separation to enhance efficiencies. — Zev Fima,kevin Stankiewicz, CNBC, 2 Aug. 2026 In other words, employees these days are hiding their efficiency. — Nirit Cohen, Forbes.com, 2 Aug. 2026 See All Example Sentences for efficiency

Recent Examples of Synonyms for efficiency

Noun

As Kennedy has spent years questioning vaccine efficacy before becoming HHS Secretary, this messaging from an extremely influential health leader may have also contributed to vaccine hesitancy and declining vaccination rates.

— Omer Awan, Forbes.com, 2 Aug. 2026
When the question is accumulated knowledge with years of safety and efficacy data, refined dosing, and better patient selection, sponsors are told that information doesn’t go the other way.

— Kat Bryant Knudson, STAT, 31 July 2026

Definition of efficacy

Noun

But research has been limited and is still in the early stages of understanding the full extent of their effectiveness, safety and long-term effects when used for addiction treatment.

— Steven Beynon, ABC News, 30 July 2026
His 55 per cent success rate was better than anyone in the top 75 for take-on attempts — a marker of his effectiveness from these situations.

— Anantaajith Raghuraman, New York Times, 30 July 2026