| adjective | (of a person) possessing physical strength and weight; rugged and powerful “a hefty athlete” |
| adjective | of considerable weight and size “a hefty dictionary” |
| adjective | large in amount or extent or degree “it cost a considerable amount” |
| brawn | noun | possessing muscular strength |
| brawniness | noun | possessing muscular strength |
| heft | noun | the property of being large in mass |
| heftiness | noun | the property of being large in mass |
| muscle | noun | possessing muscular strength |
| muscularity | noun | possessing muscular strength |
| sinew | noun | possessing muscular strength |
| sizeableness | noun | unusual largeness in size or extent or number |