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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.

A turbo engine is not only arguably more road-relevant, but is also more efficient than a naturally aspirated one, which means less fuel, even if turbos and their associated architecture are heavy and complicated.

From BBC • May 14, 2026

Graphon said its system is designed to work with “effectively unlimited” data and that it is compatible with any foundation model or agent framework, making them more efficient.

From The Wall Street Journal • May 14, 2026

The work could lead to a more efficient and environmentally friendly approach for discovering serotonin-targeting drugs that provide some of the therapeutic effects linked to psychedelics without dramatically altering perception.

From Science Daily • May 14, 2026

Ultimately, the best protection against oil price shocks is a more efficient gas-burning vehicle, or one that doesn’t burn gasoline at all.

From Salon • May 13, 2026

For my part, I’d become an expert at walking quickly and lowering my gaze when passing through public spaces, which helped keep things efficient.

From "Becoming" by Michelle Obama




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