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
Rotisserie chicken, peas, and herbs come together for this foolproof one-pot meal.
—
Symiah Dorsey, Southern Living, 14 Mar. 2026
Spark Joy with Animal Motifs Designers agree that animal motifs are a simple, foolproof way to add some fun and charm to any space.
—Cori Sears, Better Homes & Gardens, 10 Mar. 2026
Pretty is almost foolproof in a time of uncertainty.
—Rachel Tashjian, CNN Money, 10 Mar. 2026
Beige Much like gray, beige is often seen as a foolproof choice.
—Marisa Suzanne Martin, The Spruce, 7 Mar. 2026
See All Example Sentences for foolproof
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Symiah Dorsey, Southern Living, 14 Mar. 2026
Spark Joy with Animal Motifs Designers agree that animal motifs are a simple, foolproof way to add some fun and charm to any space.
—Cori Sears, Better Homes & Gardens, 10 Mar. 2026
Pretty is almost foolproof in a time of uncertainty.
—Rachel Tashjian, CNN Money, 10 Mar. 2026
Beige Much like gray, beige is often seen as a foolproof choice.
—Marisa Suzanne Martin, The Spruce, 7 Mar. 2026
See All Example Sentences for foolproof
Cite this Entry
“Foolproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foolproof. Accessed 15 Mar. 2026.
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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