rustier; rustiest
1
: affected by or as if by rust
especially
: stiff with or as if with rust
2
: not as good or quick as usual or as in the past because of lack of practice or use
3
a
: of the color rust
b
: dulled in color or appearance by age and use
rusty old boots
4
: outmoded
rusty jokes
Cite this Entry
“Rusty.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rusty. Accessed 28 Aug. 2026.
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