Synonyms for Bony (same or very similar meaning)
WordNet sense 1 (composed of or containing bone):
osseous, ostealWordNet sense 2 (very thin especially from disease or hunger or cold):
cadaverous, emaciated, gaunt, haggard, pinched, skeletal, wastedWordNet sense 3 (lacking excess flesh):
leanWordNet sense 4 (having bones especially many or prominent bones):
boneyFrom the ODE community, based on WordNetadd/edit