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.

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

Supporters of the birth dose say that screening efforts aren’t foolproof.

From The Wall Street Journal • Dec. 5, 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

But, Coffee warned, “AI is not foolproof and they don’t have the same depth of knowledge at least initially as the Big Four.”

From The Wall Street Journal • Oct. 31, 2025

Yolanda: My dad sez he’s waiting to find one that’s foolproof.

From "Among the Hidden" by Margaret Peterson Haddix