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Definition of “powerful” - English Dictionary

"powerful" in American English

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powerfuladjective

us   /ˈpɑʊ·ər·fəl/
  • powerful adjective (STRONG)

strong: The picture quality is bad because the TV signal isn’t powerful enough.
Things that are powerful have a strong effect: a powerful drug
  • powerful adjective (CONTROLLING)

having a lot of power: He’s in a powerful position as an adviser of the president.
(Definition of powerful from the Cambridge Academic Content Dictionary © Cambridge University Press)







"powerful" in British English

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powerfuladjective

uk   /ˈpaʊə.fəl/ us   /ˈpaʊ.ɚ.fəl/
  • 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.

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  • 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.
B2 having a very great effect: a powerful drug Her speech about cruelty to children was very powerful.
  • 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.
powerfully
adverb uk   /ˈpaʊə.fəl.i/ us   /ˈpaʊ.ɚ.fəl.i/
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).
(Definition of powerful from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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