Adj denoting physique

plump

fleshy or overweight

corpulent

excessively fat

obese

medically very overweight

muscular

strong with well

stout

rather fat and heavy at the same time

hefty

big and strong

husky

strong and powerfully built

burly

large in body, bulky and stout

virile

exhibiting physical strength and sexual power

sturdy

possessing excellent health and strength

robust

strong, healthy with stamina

lanky

very thin, tall and ungraceful

spindly

long, thin, suggesting weakness

feeble

weak, lacking in muscular power

delicate

easily injured or easily made ill

frail

delicate, usually in poor health

gaunt

thin, extremely weak, as though from lack of food

sickly

often ill

bony

very thin, as though the bones show through the skin

skinny

very thin

decrepit

weak and in bad condition from old age

senile

(connected with old age) showing the weakness of the body and especially of the mind