1) Abdominousness 2) Adiposeness 3) Adiposity 4) Corpulence 5) Fattiness 6) Flesh 7) Fleshiness 8) Greasiness 9) Obesity 10) Oiliness 11) Oleaginousness 12) Paunchiness 13) Roundness 1) Avoirdupois 2) Blubber 3) Bodily property 4) Chubbiness 5) Chubby quality 6) Corpulence 7) Dumpiness 8) Excess bodily weight 9) Flabbiness 10) Fleshiness 11) Heaviness 12) Obesity 13) Plumpness 14) Solidity 15) Squatness 16) Stoutness 17) Tubbiness 
• (n.) Hence; Richness; fertility; fruitfulness. • (n.) That which makes fat or fertile. • (n.) The quality or state of being fat, plump, or full-fed; corpulency; fullness of flesh.
Fat'ness noun 1. The quality or state of being fat, plump, or full-fed; corpulency; fullness of flesh. « Their eyes stand out with fatness .» Ps. lxxiii. 7. 2. Hence; Richness; fertility; fruitfulness. « Rich in the fatness of her plenteous so...
[n] - excess bodily weight
fat noun excess bodily weight; `she disliked fatness in herself as well as in others`