Meaning & use
foolproof
Last updated
Designed so simply or effectively that it cannot fail or be used incorrectly.
See it in a sentence
The recipe promised a foolproof method for baking the perfect loaf of bread.
No security system is truly foolproof, but this one comes close.
A note on using this word
Often used with a hint of caution or irony, since claiming something is 'foolproof' can invite the very failure it denies is possible.
Words with a similar meaning
infalliblefailsafe
Choose a synonym to suit the sentence. Meanings can overlap without being identical.
Words with an opposite meaning
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