atrophied — exhibiting or affected with atrophy; wasted; withered; shriveled: an atrophied arm; an atrophied talent.
attenuate — To attenuate something means to reduce it or weaken it.
attenuated — An attenuated object is unusually long and thin.
famished — extremely hungry: to be famished after a hike; famished, homeless multitudes.
peaked — Also, on-peak. being at the point of maximum frequency, intensity, use, etc.; busiest or most active: Hotel rooms are most expensive during the peak travel seasons.
cadaverous — If you describe someone as cadaverous, you mean they are extremely thin and pale.
consumptive — A consumptive person suffers from tuberculosis.
haggard — having a gaunt, wasted, or exhausted appearance, as from prolonged suffering, exertion, or anxiety; worn: the haggard faces of the tired troops.
lank — (of plants) unduly long and slender: lank grass; lank, leafless trees.
meager — deficient in quantity or quality; lacking fullness or richness; scanty; inadequate: a meager salary; meager fare; a meager harvest.
skeleton — Anatomy, Zoology. the bones of a human or an animal considered as a whole, together forming the framework of the body.