hef ‧ ty /ˈhefti/ BrE AmE adjective [usually before noun]
1 . big and heavy:
a tall hefty man
a hefty tome (=large thick book)
hefty camera equipment
2 . a hefty amount of something, especially money, is very large:
a hefty fine
3 . British English a hefty blow, kick etc is done using a lot of force:
He aimed a hefty kick at the door.
a hefty shove