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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.

Previous F1 engines are considered some of the most efficient in the world; the 2026 engine is the premier of advance sustainable fuels for F1.

From The Wall Street Journal • May 1, 2026

While graphics processing units are optimized for training large models, CPUs are the most efficient way to power agentic AI needs such as real-time reasoning and coding, the company said.

From MarketWatch • Apr. 24, 2026

“Dearica has developed into one of the most efficient and impactful players in the league,” Sparks general manager Raegan Pebley said in statement announcing her re-signing.

From Los Angeles Times • Apr. 13, 2026

U.S. equities, in fact, are probably the most efficient market in the world in terms of digesting, adjusting, and reacting to new data.

From Barron's • Apr. 8, 2026

Smooth air flowing around the wing means the plane can slip through the sky with minimum friction, the way the most efficient swimmers cut through the water.

From "Hidden Figures" by Margot Lee Shetterly