foolproof
adjective
fool·proof
ˈfül-ˌprüf 
: so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure
a foolproof plan
Examples of foolproof in a Sentence
DNA fingerprinting gives police a virtually foolproof way to link a suspect to a crime scene.
Recent Examples on the Web
Perfect for birthdays, vacations, and of course, Valentine’s Day, romantic spa getaways in California, especially, are a foolproof activity for any pair.
—
Dahvi Shira, Forbes, 5 Feb. 2025
Ahead, several foolproof Valentine’s Day outfits to shop and copy now.
—Talia Abbas, Glamour, 15 Jan. 2025
Wear yours with trousers, jeans, and maxi skirts for a foolproof winter outfit every time.
—taylor Jean Stephan, People.com, 17 Dec. 2024
Ultimately, a foolproof test for fake wine remains a far-off idea.
—Chris Hall, WIRED, 18 Dec. 2024
See All Example Sentences for foolproof
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Dahvi Shira, Forbes, 5 Feb. 2025
Ahead, several foolproof Valentine’s Day outfits to shop and copy now.
—Talia Abbas, Glamour, 15 Jan. 2025
Wear yours with trousers, jeans, and maxi skirts for a foolproof winter outfit every time.
—taylor Jean Stephan, People.com, 17 Dec. 2024
Ultimately, a foolproof test for fake wine remains a far-off idea.
—Chris Hall, WIRED, 18 Dec. 2024
See All Example Sentences for foolproof
Cite this Entry
“Foolproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foolproof. Accessed 8 Mar. 2025.
Copy CitationKids Definition
foolproof
adjective
fool·proof
ˈfül-ˈprüf
: done, made, or planned so well that nothing can go wrong
foolproof directions
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