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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.

The RTX Spark, combining a CPU and Blackwell GPU, is described as “the most efficient PC chip ever built.”

From Barron's • Jun. 1, 2026

She described it as the "most efficient fighting style that ever existed," and when it pays off like it did against Carano, there are not many who can argue with her.

From BBC • May 17, 2026

Productivity growth comes from allowing free people to create new tools and to use them in the most efficient way possible.

From The Wall Street Journal • May 8, 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

“I should suggest that Dreamwalking might be the most efficient remedy. You can Dreamwalk, can you not?”

From "The Graveyard Book" by Neil Gaiman