EFFICIENCY Synonyms: 22 Similar and Opposite Words

efficiency

noun

i-ˈfi-shən-sē

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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Recent Examples of efficiency Over time, these insights embed themselves into a continuous improvement culture, enabling incremental enhancements in process efficiency, waste minimization, and energy management. —

CBS News, 23 Jan. 2026 How to save on heating bills — safely Experts offer a variety of other tips that, altogether, could cut down on your bills and ensure your heating unit is working at maximum efficiency. —

Alexis Simmerman, Austin American Statesman, 23 Jan. 2026 From Warraich’s viewpoint, autonomous action represents a natural evolution in how enterprises use technology to achieve efficiency, resilience, and consistency. —

Wyles Daniel, USA Today, 8 Jan. 2026 Smart storage and some savvy kitchen organization ideas can maximize efficiency and even save you precious meal prep time. —

Bridget Reed Morawski, Architectural Digest, 7 Jan. 2026 See All Example Sentences for efficiency

Recent Examples of Synonyms for efficiency

Noun

The study also cites that there is no clear efficacy or safety data which can strongly point towards downstream physiologic and pathologic impacts.

— Forbes.com, Forbes.com, 22 Jan. 2026
The first-of-a-kind brain-stimulation device approved to treat attention-deficit/hyperactivity disorder (ADHD) in the US has had its efficacy questioned, with scientists believing that its Food and Drug Administration (US) approval was based on too small a study.

— New Atlas, New Atlas, 21 Jan. 2026