HEFTIEST
HEFTY
goodly, goodish, healthy, hefty, respectable, sizable, sizeable, tidy
(adjective) 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”
hefty
(adjective) of considerable weight and size; “a hefty dictionary”
brawny, hefty, muscular, powerful, sinewy
(adjective) (of a person) possessing physical strength and weight; rugged and powerful; “a hefty athlete”; “a muscular boxer”; “powerful arms”
Source: WordNet® 3.1
Adjective
heftiest
superlative form of hefty: most hefty
Source: Wiktionary
HEFTY
Heft"y, a.
Definition: Moderately heavy. [Colloq. U. S.]
Source: Webster’s Unabridged Dictionary 1913 Edition