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Meaning & Definition of Foolproof in English

English

Foolproof

/fulpruf/

verb

1. Proof against human misuse or error

  • "Foolproof this appliance"
synonym:
  • goofproof,
  • goof-proof,
  • foolproof

adjective

1. Not liable to failure

  • "A foolproof identification system"
  • "The unfailing sign of an amateur"
  • "An unfailing test"
synonym:
  • foolproof,
  • unfailing