1. foolproof - Adjective
2. foolproof - Verb
3. foolproof - Adjective Satellite
proof against human misuse or error
not liable to failure
Source: WordNetA common mistake that people make when trying to design something completely foolproof is to underestimate the ingenuity of complete fools. Douglas Adams
There's no system foolproof enough to defeat a sufficiently great fool. Edward Teller
I sometimes wonder if the manufacturers of foolproof items keep a fool or two on their payroll to test things. Alan Coren
His priority did not seem to be to teach them what he knew, but rather to impress upon them that nothing, not even... knowledge, was foolproof. J. K. Rowling
So the whole "We have a list and we're not telling you" should tell you something. Don't you think that if Microsoft actually had some really foolproof patent, they'd just tell us and go, "nyaah, nyaah, nyaah!" Linus Torvalds
The story of my very first sale is the fact that I dreamed up a foolproof paper to cheat an insurance company out of several hundred thousand dollars. Theodore Sturgeon