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English definition of “powerful”

powerful

adjective uk   /ˈpaʊə.fəl/ us    /ˈpaʊɚ-/

powerful adjective (CONTROL)

B1 having a lot of power to control people and events: The president is more powerful than the prime minister. She's the most powerful person in the organization.Physically strong and powerful

powerful adjective (STRENGTH)

B1 having a lot of strength or force: She's an extremely powerful runner. The picture quality is bad because the TV signal isn't powerful enough.Physically strong and powerful B2 having a very great effect: a powerful drug Her speech about cruelty to children was very powerful.Having a powerful effectStrong feelingsVery and extreme

powerful adjective (IMAGE SIZE)

having the power to increase the size of an image of something that is very small or far away many times: You'd need an extremely powerful microscope to see something so small.Optics, microscopy and lasersEyesight, glasses and lenses
powerfully
adverb uk   /-i/ us    /ˈpaʊɚ-/
B2 He argued powerfully and persuasively against capital punishment. She kicked the ball so powerfully that it flew over the hedge. Klaus is a very powerfully built man (= has a body with large strong muscles).Having a powerful effectStrong feelingsVery and extremePhysically strong and powerful
(Definition of powerful from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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