1. (of a person) possessing physical strength and weight; rugged and powerful

- a hefty athlete

Similar word(s): strong, brawny, muscular, powerful, sinewy, rugged

2. of considerable weight and size

- a hefty dictionary

Similar word(s): heavy

3. large in amount or extent or degree

- received a hefty bonus

Similar word(s): considerable, goodish, goodly, healthy, respectable, sizable, sizeable, tidy

Sentences with hefty as an adjective:

- She carries a hefty backpack full of books.

- They use some hefty bolts to hold up road signs.

- He was a tall, hefty man.