foolproof

Definition of foolproofnext
as in perfect
done, made, or planned so well that nothing can go wrong a foolproof plan DNA fingerprinting gives police a virtually foolproof way to link a suspect to a crime scene.

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Example Sentences

Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Recent Examples of foolproof 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 To avoid disaster, the two hatch a foolproof plan. Randy Myers, Mercury News, 4 Mar. 2026 See All Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
  • On this postcard-perfect corner of Canada’s northeastern province of Newfoundland and Labrador that’s slammed by wind and waves, cod-fishing communities hold on to their distinctive settler history.
    Condé Nast, Condé Nast Traveler, 2 Apr. 2026
  • Anything less than near-perfect means teams are preparing for a potential delay.
    Brandi D. Addison, USA Today, 1 Apr. 2026
Adjective
  • This, plus tanking penalties, feels nearly flawless.
    Zach Harper, New York Times, 30 Mar. 2026
  • Imanaga will give up home runs as a fly ball pitcher, so living to fight another day is more valuable than trying to be flawless.
    Andy Martinez, Chicago Tribune, 29 Mar. 2026
Adjective
  • Affordable yet reliable, the JBL Vibe Beam wireless earbuds are terrific for listening to your favorite tunes while commuting, hiking, exercising or at the beach.
    BestReviews, Chicago Tribune, 30 Mar. 2026
  • However, there is a reliable method for keeping crows out of your yard and letting the others live in peace.
    Joan Morris, Mercury News, 30 Mar. 2026

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Cite this Entry

“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 5 Apr. 2026.

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