incapable of going wrong or being misused, so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure

Formal and Informal Expressions of foolproof

In different contexts, you can replace 'foolproof' with suitable alternatives. In a more formal setting, 'fail-safe, unfailing' is apt. In informal speech or writing, 'idiot-proof, dummy-proof' is a commonplace synonym.

foolproof: Explore its Definition & Usage

foolproof Definition

1incapable of going wrong or being misused
2so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure

Using foolproof: Examples

Take a moment to familiarize yourself with how "foolproof" can be used in various situations through the following examples!

Example
The instructions are foolproof and easy to follow.
Example
The new security system is designed to be foolproof.
Example
The recipe is foolproof, even for beginners.

foolproof Synonyms and Antonyms

Synonyms for foolproof

Antonyms for foolproof

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Summary: foolproof in Brief

The term 'foolproof' [ˈfuːlpruːf] describes something that is incapable of going wrong or being misused. It is often used to describe instructions, systems, or recipes that are so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure. Examples include 'The instructions are foolproof and easy to follow.' and 'The new security system is designed to be foolproof.' Synonyms include 'fail-safe,' 'unfailing,' 'certain,' 'sure,' and 'guaranteed.'