most efficient

ADJECTIVE

adept, effective

Synonyms

STRONGEST

able active adequate capable competent decisive dynamic economical energetic potent powerful productive profitable skilled skillful tough useful valuable

WEAK

accomplished adapted apt businesslike clever conducive deft economic effectual efficacious equal to experienced expert familiar with fitted good at good for handy masterly organized practiced proficient qualified ready saving shrewd systematic talented virtuous well-organized

Antonyms

STRONGEST

delicate fragile idle impotent inactive inadequate incapable incompetent ineffective inept lazy sluggish unable unskilled unskillful useless weak worthless

WEAK

helpless inefficient powerless

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.

See Examples For:

most efficient

"If you want to create the most efficient magnetic sense, smaller is better."

From Science Daily ● Oct. 2, 2026

Ineos says that its plants in Humberside are "among the most efficient in the world", producing materials with half the carbon footprint of US rivals, and only one eighth the footprint of Chinese equivalents.

From BBC ● Sep. 22, 2026

He wasn’t the most efficient, the most pristine, the sharpest — but he was fit to throw 98 pitches and six innings.

From Los Angeles Times ● Sep. 19, 2026

One of their waste products is carbon dioxide—but they emit less than the most efficient natural-gas engines.

From The Wall Street Journal ● Sep. 4, 2026

“The Palmer method has been proved to be the most efficient system.”

From "Homesick" by Jean Fritz

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