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WordReference Random House Learner's Dictionary of American English © 2024pow•er•ful /ˈpaʊɚfəl/USA pronunciation adj. - of or relating to power:one of the most powerful earthquakes ever recorded; a powerful grip;a powerful drug that made him lose his memory;a powerful speech.
pow•er•ful•ly, adv. WordReference Random House Unabridged Dictionary of American English © 2024pow•er•ful (pou′ər fəl),USA pronunciation adj. - having or exerting great power or force.
- physically strong, as a person:a large, powerful athlete.
- producing great physical effects, as a machine or a blow.
- potent;
efficacious:a powerful drug. - having great effectiveness, as a speech, speaker, description, reason, etc.
- having great power, authority, or influence;
mighty:a powerful nation. - Dialect Terms[Chiefly South Midland and Southern U.S.]great in number or amount:a powerful lot of money.
- Middle English powarfull. See power, -ful 1350–1400
- 1.See corresponding entry in Unabridged forceful, strong. Powerful, mighty, potent suggest great force or strength. Powerful suggests capability of exerting great force or overcoming strong resistance:a powerful machine like a bulldozer.Mighty, now chiefly rhetorical, implies uncommon or overwhelming strength of power:a mighty army.Potent implies great natural or inherent power:a potent influence.
- 5.See corresponding entry in Unabridged influential, convincing, forcible, cogent, effective.
- 1.See corresponding entry in Unabridged weak.
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