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 U.S. could keep powerful munitions in orbit to be deployed quickly and without risk to American troops.

From The Wall Street Journal • Apr. 5, 2026

It also demonstrated how a powerful image can write history, and Nasa will be hoping that Artemis II delivers a moment of comparable resonance.

From BBC • Apr. 5, 2026

This ability to fine-tune surface composition provides a powerful new way to design materials for electronics, catalysis, energy storage, photonics, and other applications.

From Science Daily • Apr. 4, 2026

Clement “was fascinated by powerful businessmen,” Bartholomew added, and he “appears to have further believed that their very names are puns that reveal God’s purposes.”

From Salon • Apr. 4, 2026

Zeke was taller than the pelican now, and though birds are incredibly powerful, Zeke was big for a small lizard.

From "Chronicles of a Lizard Nobody" by Patrick Ness

powerful

Example Sentences

Related Words