Adjectives

(s)scragglyragged, thin, or untidy in appearance“the old man's scraggly beard”, “a scraggly little path to the door”
(s)scraggy, scraggly, boney, bony, scrawny, skinny, underweight, weedybeing very thin“a child with skinny freckled legs”, “a long scrawny neck”, “pale bony hands”