Synonyms For "Fat" :
1 syllable:
gross, plump, rich, stout, thick
2 syllables:
blubber, buxom, chubby, dumpy, fatness, fatten, fattish, fatty, fertile, fill out, flesh out, fleshy, heavy, jowly, juicy, obese, paunchy, plump out, podgy, porcine, portly, pudgy, pyknic, rotund, rounded, tubby, weighty, zaftig, zoftig
3 syllables:
blubbery, corpulent, embonpoint, fatten out, fatten up, overweight, potbellied, productive