1. 
2. 
[syn: bony, cadaverous, emaciated, gaunt, haggard, pinched, skeletal, wasted]
The Collaborative International Dictionary of English v.0.48:
Skeletal \Skel"e*tal\, a.
   Pertaining to the skeleton.
   [1913 Webster]
WordNet (r) 3.0 (2006):
skeletal
    adj 1: of or relating to or forming or attached to a skeleton;
           "the skeletal system"; "skeletal bones"; "skeletal
           muscles"
    2: very thin especially from disease or hunger or cold;
       "emaciated bony hands"; "a nightmare population of gaunt men
       and skeletal boys"; "eyes were haggard and cavernous"; "small
       pinched faces"; "kept life in his wasted frame only by grim
       concentration" [syn: bony, cadaverous, emaciated,
       gaunt, haggard, pinched, skeletal, wasted]
Moby Thesaurus II by Grady Ward, 1.0:
56 Moby Thesaurus words for "skeletal":
   attenuated, bony, cadaverous, corpselike, emacerated, emaciate,
   emaciated, flat, flat-chested, fleshless, gangling, gangly, gaunt,
   gawky, haggard, hollow-eyed, jejune, lank, lanky, lean,
   lean-fleshed, lean-looking, marantic, marasmic, meager, peaked,
   peaky, pinched, poor, puny, rawboned, scraggy, scrawny, shriveled,
   skeleton, skinny, spare, spidery, spindling, spindly, starved,
   starveling, tabetic, tabid, thin-bellied, thin-fleshed, twiggy,
   underfed, undernourished, undersized, underweight, wasted, weazeny,
   withered, wizened, wraithlike