powerful

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English

Alternative forms

Etymology

From Middle English pouerful, powarfull, equivalent to power +‎ -ful.

Pronunciation

Adjective

powerful (comparative more powerful or powerfuller or powerfuler, superlative most powerful or powerfullest or powerfulest)

  1. Having, or capable of exerting, power or influence.
  2. Leading to many or important deductions.
    a powerful set of postulates
    a powerful theorem
  3. (mining) Large; capacious; said of veins of ore.
  4. (mathematics, not comparable) Being a powerful number.
    Synonym: squareful

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See also

Adverb

powerful (comparative more powerful, superlative most powerful)

  1. (dialect, Southern US or archaic) very; extremely
    • 1972, John O'Grady, It's Your Shout, Mate, Ure Smith, page 59:
      "She was stinkin' hot down here that summer, an' we were powerful dry."

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