Definition of Hefty

Adjective: hefty (heftier,heftiest) hef-tee

(of a person) possessing physical strength and weight; rugged and powerful
"a hefty athlete";
- brawny, muscular, powerful, sinewy, muscly
Of considerable weight and size
"a hefty dictionary"
Large in amount, extent or degree
"received a hefty bonus";
- goodly, goodish, healthy, respectable, sizable, sizeable, tidy