Open English Wordnet
Adjectives
(a)powerfulhaving 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” (s)brawny, hefty, muscular, powerful, sinewy(of a person) possessing physical strength and weight; rugged and powerful“a hefty athlete”,
“a muscular boxer”,
“powerful arms” Adverbs
(r)mighty, mightily, powerful, right(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”