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EnglishEdit

EtymologyEdit

From fool +‎ -proof.

AdjectiveEdit

foolproof (comparative more foolproof, superlative most foolproof)

  1. For a device: protected, or designed to be proof against misuse or error.
  2. For an idea or plan: infallible, or bulletproof.

Derived termsEdit

Related termsEdit

TranslationsEdit

VerbEdit

foolproof (third-person singular simple present foolproofs, present participle foolproofing, simple past and past participle foolproofed)

  1. (transitive) To make foolproof.
    We foolproofed the operations.