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Definitions

efficient

[ih-fish-uhnt] / ɪˈfɪʃ ənt /


Usage

What are other ways to say efficient? The adjective efficient, when applied to a person or a thing, implies the skillful use of energy or industry to accomplish desired results with little waste of effort: efficient methods; an efficient manager. Effective is applied to a person or a thing that has the power to, or which actually does, produce an effect: an effective boss, remedy, speech. Effectual is used especially of that which produces the effect desired or intended, or a decisive result: An effectual bombardment silenced the enemy. Efficacious suggests the capability of achieving a certain end: an efficacious plan, medicine. 

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.

“He’s unbelievably efficient, and that’s probably dramatized by the fact that I’m slow and inefficient,” Buffett said of his successor, in an interview.

From The Wall Street Journal • Jun. 3, 2026

And he thinks A.I. can be harnessed to make government more efficient and effective for constituents.

From Slate • Jun. 2, 2026

“Phones, PCs, vehicles, factories, robots, cameras, sensors and connected devices all need efficient, secure compute with software that scales. These AI workloads will all run on Arm.”

From MarketWatch • Jun. 1, 2026

Nvidia late on Sunday unveiled the RTX Spark, which it described as “the most efficient PC chip ever built,” designed for personal devices to run AI agents—programs that can act autonomously.

From Barron's • Jun. 1, 2026

On this basis of material stability Orgoreyn had gradually built up a unified and increasingly efficient centralized state.

From "The Left Hand of Darkness" by Ursula K. Le Guin




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