# rustproof

> English word · Adjective

## Definitions
1. Resistant to rust, oxidation and corrosion.
2. Resistant to the rust fungus.

## Etymology
From rust + -proof.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/rustproof