rustproof

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adjective

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.”

Similar
nonrustingstainlessrustproofedrustless
OriginEnglish proof →
UncommonScrabble 14
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Meanings

adjectiverustproof (comparative more rustproof, superlative most rustproof)

comparative more rustproof · superlative most rustproof

  1. 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.

    Synonyms: nonrusting, stainless

  2. Resistant to the rust fungus.
verbrustproof (third-person singular simple present rustproofs, present participle rustproofing, simple past and past participle rustproofed)

present singular third person rustproofs · participle present rustproofing · participle past rustproofed · past rustproofed

  1. 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.

Synonyms & antonyms

adjectiveResistant to rust, oxidation and corrosion.

Similar
nonrustingstainless

More synonyms by meaning

adjectivetreated against rusting

Similar
rustproofedrustless
Also see
rustlessstainless

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Englishrust
  2. Englishproof
  3. Englishrustproof

From rust + -proof.

Full word history & related roots →

Translations

Bulgarian неръждаем
  • неръждаем (nerăždaem)resistant to rust, oxidation and corrosion
Czech korozivzdorný
  • korozivzdornýresistant to rust, oxidation and corrosion
Dutch roestvrij
  • roestvrijresistant to rust, oxidation and corrosion
Esperanto rustimuna, rustorezista
  • rustimunaresistant to rust, oxidation and corrosion
  • rustorezistaresistant to rust, oxidation and corrosion
Finnish ruostumaton
  • ruostumatonresistant to rust, oxidation and corrosion
French inoxydable
  • inoxydableresistant to rust, oxidation and corrosion
German rostfrei, rostbeständig
  • rostfreiresistant to rust, oxidation and corrosion
  • rostbeständigresistant to rust, oxidation and corrosion
  • rostfestresistant to rust, oxidation and corrosion
Hungarian rozsdamentes
  • rozsdamentesresistant to rust, oxidation and corrosion
Japanese 防銹
  • 防銹 (bōshū)resistant to rust, oxidation and corrosion
Polish nierdzewny, rdzoodporny
  • nierdzewnyresistant to rust, oxidation and corrosion
  • rdzoodpornyresistant to rust, oxidation and corrosion
Russian нержаве́ющий
  • нержаве́ющий (neržavéjuščij)resistant to rust, oxidation and corrosion
Spanish inoxidable
  • inoxidableresistant to rust, oxidation and corrosion
Cite this entry
APA

rustproof. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/rustproof

MLA

“rustproof.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rustproof. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “rustproof,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/rustproof.

Source: rustproof on Wiktionary, CC BY-SA 4.0.