Adjective: foolproof 'fool,proof
- Not liable to failure
"a foolproof identification system";
- unfailing, idiot-proof [informal]
- Proof against human misuse or error
"foolproof this appliance";
- goofproof, goof-proof, idiot-proof [informal]
Derived forms: foolproofs, foolproofing, foolproofed
See also: infallible
Type of: proof
Encyclopedia: Foolproof