Dictionary and Thesaurus

Definition of Powerful

• (a.) Full of power; capable of producing great effects of any kind; potent; mighty; efficacious; intense; as, a powerful man or beast; a powerful engine; a powerful argument; a powerful light; a powerful vessel.
• (a.) Large; capacious; -- said of veins of ore.

Synonyms of Powerful

• Knock-Down
• Potent
• Brawny
• Hefty
• Muscular
• Sinewy
• Herculean
• Mighty
• Mightily
• Right

Antonyms of Powerful

• Powerless

Homophones of Powerful