Learn how to say Rustily correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word rusty:
adjective (rustier, rustiest)
1(of a metal object) affected by rust:
a rusty hinge
green grass turning a rusty brown
(of black clothes) discoloured by age.
2(of knowledge or a skill) impaired by lack of recent practice:
my typing is a little rusty
stiff with age or disuse:
it was my first race for three months and I felt a bit rusty
Old English rūstig (see rust, -y1)