emaciated
Symptoms include emaciation and listlessness.
The image brings to mind the emaciation of refugees in a camp.
The ghastly emaciation of these children is horrible.

SMART Vocabulary: related words and phrases

Animal physiology: thin or slender (of people)
be as thin as a rakephrase
be skin and bone(s)idiom
ectomorph
ectomorphic
emaciated
gauntly
gauntness
hollow
lithe
raw-boned
scrawny
slender
slight
slimness
sparely
thinness
ultra-thin
wasted
wirily
wiry

You can also find related words, phrases, and synonyms in the topics:

Not fit & healthy