rusty

US /ˈrʌs.ti/
UK /ˈrʌs.ti/
"rusty" picture
1.

covered with rust

:
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The old car was completely rusty.
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The gate was rusty and hard to open.
:
corrodedoxidizedrusted
2.

not as good as it used to be, because you have not been practicing

:
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My French is a bit rusty, but I can still understand most of it.
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After years of not playing, his piano skills were a bit rusty.
:
out of practiceunskilledimpaired