rustproof.
Resistant to rust, oxidation and corrosion.
Meaning & usage
Resistant to rust, oxidation and corrosion.
This is supposed to be a rustproof trashcan, but it can't handle the salt they use on our roads.
Resistant to the rust fungus.
Where this word comes from
Etymology tree English rust English proof English -proof English rustproof From rust + -proof.
To make resistant to rust, such as by applying a coating.
We'll rustproof the metal with a good coat of paint and then we'll be able to leave it outdoors for years without damage.
Where this word comes from
Etymology tree English rust English proof English -proof English rustproof From rust + -proof.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.