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English definition of “powerful”

powerful

adjective (STRENGTH)    /ˈpaʊə.fəl/ US  /ˈpaʊɚ-/
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 powerfully     /-i/ US  /ˈpaʊɚ-/ adverb 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 adjective (STRENGTH) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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