Nouns

(n)skinnyconfidential information about a topic or person“he wanted the inside skinny on the new partner”

Adjectives

(s)scraggy, scraggly, boney, bony, scrawny, skinny, underweight, weedybeing very thin“a child with skinny freckled legs”, “a long scrawny neck”, “pale bony hands”
(a)skinnyof or relating to or resembling skin
(s)tight-fitting, tightfitting, tight fitting, tightly fitting, skinnyfitting snugly“a tightly-fitting cover”, “tight-fitting clothes”
(s)cheeseparing, close, near, penny-pinching, skinnygiving or spending with reluctance“our cheeseparing administration”, “very close (or near) with his money”, “a penny-pinching miserly old man”