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
having great power
, authority, or influence; mighty: a powerful nation.
Chiefly South Midland and Southern U.S. great in number or amount: a powerful lot of money.
Origin: 1350–1400; Middle English powarfull. Related forms
1. 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. influential, convincing, forcible, cogent, effective.