Definition of hefty adjective from the Oxford Advanced American Dictionary

     

    hefty

     adjective
    adjective
    NAmE//ˈhɛfti//
     
    (heftier, heftiest)
     
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  1. 1(of a person or an object) big and heavy Her brothers were both hefty men in their forties.
  2. 2(of an amount of money) large; larger than usual or expected They sold it easily and made a hefty profit. Interest rates have gone up to a hefty 12%.
  3. 3using a lot of force He gave the door a hefty kick.
NAmE//ˈhɛftəli//
 
adverb