rusty

adjective rustier, rustiest

1. coated with rust, as a metal, or affected with the disease of rust, as a plant
2. consisting of or caused by rust
3. not working freely, easily, or quietly because of, or as if because of, rust; stiff or rasping in operation
4. 1. impaired by disuse, neglect, etc.: to find one's golf game rusty
   2. having lost facility through lack of practice: to be a little rusty in chess
5. having the color of rust
6. faded, old-looking, or shabby

Origin: ME < OE rustig