Dictionary definition · powerful
adjective
- having great power or force or potency or effect"the most powerful government in western Europe"
- strong enough to knock down or overwhelm"a knock-down blow"
- having great influence
- (of a person) possessing physical strength and weight; rugged and powerful"a hefty athlete"
- displaying superhuman strength or power"herculean exertions"
adverb
- (Southern regional intensive) very; to a great degree"the baby is mighty cute"
Source: Open English WordNet (CC BY 4.0).