foolproof

[US]/ˈfuːlpruːf/

[UK]/ˈfuːlpruːf/

Frequency: Very High

Translation

adj. designed in a way that ensures success and prevents mistakes or failure

a foolproof detonator; a foolproof safety lock.

a foolproof security system.

his so-called foolproof method (not “foolproof method” ).

The system is pretty well foolproof.

We’re trying to work out a way to make the system foolproof.

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