powerful

Adjective

• displaying superhuman strength or power
  • herculean exertions
    

• (of a person) possessing physical strength and weight; rugged and powerful
  • a hefty athlete
    
  • a muscular boxer
    
  • powerful arms
    

• having great influence

• strong enough to knock down or overwhelm
  • a knock-down blow
    

• having great power or force or potency or effect
  • the most powerful government in western Europe
    
  • his powerful arms
    
  • a powerful bomb
    
  • the horse's powerful kick
    
  • powerful drugs
    
  • a powerful argument
    

Adverb

• (Southern regional intensive) very; to a great degree
  • the baby is mighty cute
    
  • he's mighty tired
    
  • it is powerful humid
    
  • that boy is powerful big now
    
  • they have a right nice place
    
  • they rejoiced mightily
    

Related words

• Synonyms: 
  herculean , brawny , hefty , muscular , sinewy , potent , knock-down(a) , mighty , mightily , right