Definition of foolproof in English:
Incapable of going wrong or being misused: a foolproof security system
More example sentences
- Bee-eaters have worked out a foolproof security system for the nest.
- True, democracy and the rule of law provide no foolproof security guarantee.
- Come up with a foolproof security system and stop other men like you from stealing priceless works of art.
Words that rhyme with foolproofstormproof • soundproof
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