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.

Powerful companies across business sectors have expressed discontent with the state’s business environment.

From Los Angeles Times • Apr. 14, 2026

Powerful blasts shook the Iranian capital on Thursday.

From Barron's • Apr. 2, 2026

Powerful nations are flouting international law, and somebody ought to stop them.

From The Wall Street Journal • Mar. 30, 2026

Powerful radiation from active supermassive black holes, which are believed to sit at the center of most galaxies, can do more than shape their own surroundings.

From Science Daily • Mar. 30, 2026

“Thirteen-and-a-half inches. Yew. Powerful wand, very powerful, and in the wrong hands ... well, if I’d known what that wand was going out into the world to do....”

From "Harry Potter and the Sorcerer's Stone" by J.K. Rowling

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