adjective

very pale, thin, or bony.

he was gaunt and cadaverous

(deathly) pale,pallid,white,bloodless,ashen,ashen-faced,ashy,chalky,chalk white,grey,white-faced,whey-faced,waxen,waxy,corpse-like,deathlike,ghostly,very thin,as thin as a rake,bony,skeletal,emaciated,skin-and-bones,scrawny,scraggy,raw-boned,haggard,gaunt,drawn,pinched,hollow-cheeked,hollow-eyed,like death warmed up,like a bag of bones,anorexic,spindle-shanked,livid,etiolated,lymphatic,exsanguinous,starveling,macilent