Definitions

powerful

[pou-er-fuhl] / ˈpaʊ ər fəl /

ADJECTIVE

strong, effective

Synonyms

STRONGEST

all-powerful authoritative capable compelling dominant dynamic energetic forceful impressive influential mighty persuasive potent robust vigorous

WEAK

able almighty authoritarian big-wheel cogent commanding competent controlling convincing effectual efficacious forcible in control in the saddle omnipotent overruling paramount preeminent prevailing puissant ruling sovereign stalwart strapping strengthy sturdy supreme telling upper hand weighty wicked wieldy

Antonyms

STRONGEST

idle impotent inactive incapable ineffective ineffectual insignificant lethargic unimportant weak

WEAK

unable

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 had no chance with Saibari's powerful strike in game two and kept Scotland in the contest with several fine stops, denying Achraf Hakimi, Bilal El Khannouss and Chemsdine Talbi.

From BBC • Jun. 21, 2026

Project Plowshares, the program that begot this test, bears more than a passing resemblance to today’s efforts to apply ever more powerful artificial-intelligence models to every area of human endeavor.

From The Wall Street Journal • Jun. 21, 2026

One was born into the most powerful family in Westeros and raised in luxury.

From Salon • Jun. 20, 2026

“The IPO structure created a very powerful short-term technical setup,” Shay Boloor, the chief market strategist at Futurum Equities, told MarketWatch.

From MarketWatch • Jun. 20, 2026

In our time, we control most epileptic symptoms with powerful drugs called "anticonvulsants," because uncontrolled seizures can cause their own brain damage.

From "Phineas Gage" by John Fleischman

Vocabulary lists containing powerful

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