Synonyms for Skinny:

adj.

gangling (adjective)
gangling.
lank (adjective)
Fleshless, thin as a rail, all skin and bones.
narrow (adjective)
scrawny, narrow, fine, lanky, slim, slender, skeletal, thin, willowy, tight, lean, tenuous.
very thin (adjective)
gaunt, scraggy, lanky, skeletal, rawboned, scrawny, lean, lank, angular, spare, twiggy, slender, underweight, emaciated.
wasted (adjective)
skeletal.

n.

brief, best, casual, button-through, Clingy, backless, boot-cut, A-LINE, button-down, baggy. chilled, calorific, chewy, crispy, buttery, crisp, cool, caramelized, cream. lean (noun)
gaunt.
skinny (noun)
scrawny, scraggy, weedy, lean, thin, underweight.

Other synonyms:

emaciated, gangling, Fleshless, twiggy. rawboned, lank. anorexic, angular. emaciated
gaunt.
thin
meager.
Other relevant words:
meager, gangling, underweight, Fleshless, gaunt, angular, anorexic, emaciated, spare, weedy, thin as a rail, scraggy, all skin and bones, lank, twiggy, rawboned.

Usage examples for skinny

  1. " I should like to wring his skinny little neck," said Max. – The Keeper of the Door by Ethel M. Dell
  2. She was at least seventy years old, tall, skinny and angular, and her white hair was puffed around her temples in the old- fashioned style. – Original Short Stories, Volume 12 (of 13) by Guy de Maupassant Last Updated: February 13, 2009
  3. He's as skinny as a coal- mine mule, but he's got plenty of kick in him yet. – The Veiled Lady and Other Men and Women by F. Hopkinson Smith