Definition of foolproof
: so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure <a foolproof plan>
Examples of foolproof in a sentence
DNA fingerprinting gives police a virtually foolproof way to link a suspect to a crime scene.
First Known Use of foolproof
FOOLPROOF Defined for English Language Learners
Definition of foolproof for English Language Learners
: done, made, or planned so well that nothing can go wrong
FOOLPROOF Defined for Kids
Definition of foolproof for Students
: done, made, or planned so well that nothing can go wrong <a foolproof recipe>
Seen and Heard
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