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.

It isn’t foolproof, but it usually flags at least a few inaccuracies.

From The Wall Street Journal • Mar. 21, 2026

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 • Dec. 23, 2025

“Those can be defeated but that can take a lot of time,” Sutter said.”It’s not foolproof but at least it’s a strong deterrent.”

From Los Angeles Times • Nov. 26, 2025

Both the bunker and the 20-minute red cards are very solid concepts in theory, but in practice they are not foolproof.

From BBC • Nov. 25, 2025

This was usually a foolproof comeback, making up in scorn what it lacked in originality, but on this occasion it backfired.

From "The Glass Castle" by Jeannette Walls