Synonyms of powerful

1. powerful (vs. powerless), almighty, all-powerful, omnipotent, coercive, compelling, mighty, muscular, potent, strong, puissant, regent(postnominal), regnant, reigning, ruling, effective#1, effectual#1, efficacious, potent#3, strong#4, stiff, strong: usage: having great power or force or potency or effect; "the most powerful government in western Europe"; "his powerful arms"; "a powerful bomb"; "the horse's powerful kick"; "powerful drugs"; "a powerful argument"
2. knock-down(prenominal), powerful, strong (vs. weak): usage: strong enough to knock down or overwhelm; "a knock-down blow"
3. potent, powerful, influential (vs. uninfluential): usage: having great influence
4. brawny, hefty, muscular, powerful, sinewy, strong (vs. weak): usage: (of a person) possessing physical strength and weight; rugged and powerful; "a hefty athlete"; "a muscular boxer"; "powerful arms"
5. herculean, powerful, superhuman (vs. subhuman): usage: displaying superhuman strength or power; "herculean exertions"

1. mighty, mightily, powerful, right: usage: (Southern regional intensive) very; to a great degree; "the baby is mighty cute"; "he's mighty tired"; "it is powerful humid"; "that boy is powerful big now"; "they have a right nice place"; "they rejoiced mightily"