Synonyms for

Foolproof

Verb / ˈfu:ˌlpru:f / Another word for foolproof — explore alternatives below. For syllable breakdowns and pronunciation, see this word on Syllablesworld.

Definition

Foolproof means designed or made in such a way that it cannot go wrong or fail.

Synonyms & similar words

unfailing goofproof fail-safe guaranteed certain secure unfailing infallible reliable sure bulletproof unerring accurate definite dependable sound tried-and-true trustworthy undoubted unimpeachable unassailable faultless

Example sentences

  1. The foolproof lock ensured that nobody could break in.
  2. Her foolproof recipe always resulted in delicious cookies.
  3. He used a foolproof method to solve the puzzle.
  4. The foolproof plan prevented any mistakes.
  5. The foolproof system made it easy to operate the machine.

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