Definitions for "Hefty"
of considerable weight and size; "a hefty dictionary"
large in amount or extent or degree; "it cost a considerable amount"; "a goodly amount"; "received a hefty bonus"; "a respectable sum"; "a tidy sum of money"; "a sizable fortune"
Strong; muscular; -- of people.
(of a person) possessing physical strength and weight; rugged and powerful; "a hefty athlete"; "a muscular boxer"; "powerful arms"
Keywords:  moderately, heavy
Moderately heavy.
Substantial; large; as, a hefty increase in annual profits.