Synonyms for Cadaverous (same or very similar meaning)
WordNet sense 1 (of or relating to a cadaver or corpse):
cadavericWordNet sense 2 (very thin especially from disease or hunger or cold):
bony, emaciated, gaunt, haggard, pinched, skeletal, wastedWordNet sense 3 (lacking excess flesh):
lean, thinFrom the ODE community, based on WordNetadd/edit