having become so thin that the bones noticeably protude under the skin; as, emaciated bony hands.

to become extremely thin as a result of starvation

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"

Made unhealthily thin