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.

The full connectome is now freely available online, giving researchers around the world a powerful new resource for neuroscience studies.

From Science Daily • Jun. 10, 2026

“I think it’s really powerful — it’s a little bit romantic,” Tito said, adding that he’d wished “for a life of more travels and to visit a lot of countries.”

From Los Angeles Times • Jun. 10, 2026

There was no verbiage about how the world’s most powerful hardware company would “introduce our audience to the next generation of agentic sports-watching, bringing fans closer to the action than ever before.”

From Slate • Jun. 10, 2026

AMD has marketed its GPUs as especially powerful when handling inference workloads.

From The Wall Street Journal • Jun. 10, 2026

And then she spoke the most powerful and exhausting, the bravest, most exasperating and galvanic sentence in the human language.

From "Impossible Creatures" by Katherine Rundell

Vocabulary lists containing powerful

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