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 new model does appear to be more powerful than previous generations.

From The Wall Street Journal • Jun. 11, 2026

The FIA has not published its verdict, but sources have said Red Bull have been found to have the most powerful engine.

From BBC • Jun. 10, 2026

A mother and her two children were swept away into the ocean in Laguna Beach on Tuesday evening, and one of the children remains missing, after powerful waves created dangerous conditions, authorities said.

From Los Angeles Times • Jun. 10, 2026

They deliver powerful bursts of thrust that allow spacecraft to quickly accelerate, decelerate, climb, descend, or change position.

From Science Daily • Jun. 10, 2026

What in this room could be making such a powerful sound?

From "American Spirits" by Barb Rosenstock

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