ribby

adjective3

1. •
   Pertaining to or having ribs; ribbed.

   • Fendi's smasheroo short, short fur belted over shorts, worn with ribby stockings, ribbier over-the-knee socks, Oxford ties. — 1971
2. •
   Specifically, so thin as to have prominent ribs; emaciated.

   • He grew thin and ribby, with narrow shoulders and a breast like a plucked chicken. — 1982
3. •
   (UK) Shabby, in poor condition.

   • Darbishire glanced at the first manuscript. "This one’s pretty ribby for a kick-off. It’s Binns’ famous effort.” — 1952