̈ɪˈrʌstɪ adj. (rustier, rustiest) 1 rusted or
affected by
rust. 2
stiff with age or
disuse. 3 (of
knowledge etc.) faded or impaired by
neglect (my
French is a bit rusty). 4 rust-coloured. 5 (of
black clothes) discoloured by age. 6 a of
antiquated appearance. b antiquated or
behind the times. 7 (of a voice) croaking or creaking. øørustily adv. rustiness n. [OE rustig (as RUST)]