Definitions

efficiency

[ih-fish-uhn-see] / ɪˈfɪʃ ən si /

NOUN

adeptness, effectiveness

Synonyms

STRONGEST

ability adaptability capability competence energy expertise performance productivity readiness skill talent

STRONG

abundance address adequacy capableness competency completeness economy effectualness efficacy facility faculty know-how potency power powerfulness productiveness proficiency prowess quantity resourcefulness response skillfulness suitability suitableness thoroughness

Antonyms

STRONGEST

idleness ignorance impotence inability inadequacy incapability incapacity incompetence ineptness weakness

STRONG

inefficiency lack

WEAK

helplessness ineffectiveness

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As part of that, Google said, both chips are running on its Axion central-processing-unit host for the first time, allowing for efficiency on a system level, rather than just on a chip level.

From MarketWatch • Apr. 22, 2026

By using real 3D data to build simulators, embodied AI systems can reduce the sim-to-real gap, improving training efficiency and lowering deployment costs, Daiwa says.

From The Wall Street Journal • Apr. 21, 2026

Google may be looking to diversify suppliers of application-specific integrated circuits, using Marvell for AI inference efficiency.

From Barron's • Apr. 20, 2026

Researchers are working to improve efficiency, stability and materials, including exploring biodegradable designs that could further reduce environmental impact.

From Science Daily • Apr. 19, 2026

Sometimes she would go into the workshop and help Arcadio sensitize the daguerreotype plates with an efficiency and a tenderness that ended up by confusing him.

From "One Hundred Years of Solitude" by Gabriel Garcia Marquez

Vocabulary lists containing efficiency

Word Generation Science - Energy

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"The Veldt" by Ray Bradbury

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The Boy in the Striped Pajamas

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