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The meaning of FOOLPROOF is so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure. How to use foolproof in a sentence.
FOOLPROOF definition: 1. (of a plan or machine) so simple and easy to understand that it is unable to go wrong or be used…. Learn more.
FOOLPROOF meaning: 1. (of a plan or machine) so simple and easy to understand that it is unable to go wrong or be used…. Learn more.
Foolproof definition: involving no risk or harm, even when tampered with.. See examples of FOOLPROOF used in a sentence.
Definition of foolproof adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
Synonyms for FOOLPROOF: perfect, flawless, reliable, infallible, sure, unfailing, unerring, certain; Antonyms of FOOLPROOF: defective, imperfect, faulty, flawed, unreliable, undependable, fallible.
When something is bound to work out, you can call it foolproof. Your foolproof plan for having a great summer might involve spending lots of time at the beach. If your dog tends to wander and can also jump six feet in the air, a foolproof plan for keeping her in your yard might involve an eight foot fence.