adjective

large and heavy.

a hefty young chap

burly,heavy,sturdy,strapping,bulky,brawny,husky,strong,muscular,large,big,massive,weighty,solid,well built,solidly built,powerfully built,portly,stout,hulking,hunky,beefy,ripped,shredded,buff,jacked,stalwart,thewy,leaden,substantial,ponderous,unwieldy,cumbersome,burdensome,awkward,weighing a ton