a. [ AS. rustig. ] [ Compar. Rustier superl. Rustiest. ] 1. Covered or affected with rust; as, a rusty knife or sword; rusty wheat. [ 1913 Webster ] 2. Impaired by inaction, disuse, or neglect. [ 1913 Webster ] [ Hector, ] in this dull and long-continued truce,
Is rusty grown. Shak. [ 1913 Webster ] 3. Discolored and rancid; reasty; as, rusty bacon. [ 1913 Webster ] 4. Surly; morose; crusty; sullen. [ Obs. or Prov. Eng. ] “Rusty words.” Piers Plowman. [ 1913 Webster ] 5. Rust-colored; dark. “Rusty blood.” Spenser. [ 1913 Webster ] 6. Discolored; stained; not cleanly kept; filthy. [ 1913 Webster ] The rusty little schooners that bring firewood from the British provinces. Hawthorne. [ 1913 Webster ] 7. (Bot.) Resembling, or covered with a substance resembling, rust; affected with rust; rubiginous. [ 1913 Webster ] | 
