abdominous, blubbery, buxom, chubby, compact, corpulent, double-chinned, dumpy, embonpoint, endomorphic, fat, fattish, fleshy, gross, heavy, heavyset, jowly, loose-jowled, obese, overweight, paunchy, plump, podgy, porcine, portly, potbellied, pudgy, pyknic, roly-poly, rotund, rounded, stocky, stout, thick, thickset, tubby, weighty, zaftig, zoftig
double-chinned is a ADJ.