foolproof
Americanadjective
-
involving no risk or harm, even when tampered with.
-
never-failing.
a foolproof method.
adjective
-
proof against failure; infallible
a foolproof idea
-
(esp of machines) proof against human misuse, error, etc
Etymology
Origin of foolproof
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The trick to turning one deli run into multiple dinners is simple and nearly foolproof: one creamy, one crunchy, one briny or fresh.
From Salon
Adding Extra Security at Home: Even your home network isn’t foolproof.
From Salon
In any event, while the method is hardly foolproof, it is certainly worth trying if you should ever be faced with a marauding dragon.
From Literature
For the people on your list who warrant a little extra effort — and perhaps a slightly expanded budget — I offer a reliably foolproof formula: one handmade element, paired with one small store-bought companion.
From Salon
Leaders said grabbing sovereign assets would set a dangerous precedent and that a complex plan prepared by the European Union wasn’t foolproof.
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
