foolproof

word

/ˈfuɫˌpɹuf/
/fˈuːlpɹuːf/

Definition

Something that is foolproof is so simple and reliable that anyone can use it successfully; it is almost impossible to get wrong.

Usage & Nuances

Usually describes products, systems, or instructions designed so that even a careless person cannot make a mistake. Often informal; 'foolproof solution' is common. Don't confuse with 'full proof.'

Example Sentences

This new phone is foolproof to use.

basic

We need a foolproof plan for the test.

basic

This recipe is foolproof; anyone can make it.

basic

The instructions are so foolproof that even my grandma could set it up.

natural

Is there really such a thing as a foolproof security system?

natural

Don’t worry, the online form is totally foolproof—you can’t mess it up.

natural