Synonyms of heavyset

1 Syllable
squat, plump, fat, thick, stout
2 Syllables
blocky, chunky, stocky, stubby, fattest, stodgy, thickset, blockish, fatter, compact, stockier, blockier, squattest, solid, sturdy, tubby, stumpy, dumpy, chunkier, rotund
3 Syllables
potbellied, corpulent
4 Syllables
jelly-belly, whalelike, jellybelly