foolproof

adjective
fool·​proof | \ ˈfül-ˌprüf How to pronounce foolproof (audio) \

Definition of foolproof

: 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 What make these linens stand out is the fact that they're made of fade-, stain-, shrink- and wrinkle-resistant fabric for seamless, foolproof care. Banu Ibrahim, CNN Underscored, "These are the best sheets, according to Amazon reviewers," 30 Dec. 2019 With about 100 years of family entertaining records and scores of personal experience to fall back on, Hitz selects and compiles proven successful, simple, make-ahead recipes and tips for foolproof dinner parties. Emily Spicer, ExpressNews.com, "8 books on entertaining to guide your party to soiree success," 10 Dec. 2019 And while the new parameters aren’t foolproof, an important change is that every franchise will have to annually certify that its executives did not to free agents or their representatives before league rules allow. BostonGlobe.com, "Braves keep NL East crown," 21 Sep. 2019 And while the new parameters aren’t foolproof, an important change is that every franchise will have to annually certify that its executives did not to free agents or their representatives before league rules allow. BostonGlobe.com, "Braves keep NL East crown," 21 Sep. 2019 Here’s a foolproof method for making the perfect hardboiled egg and a few tips. Claire Perez, sun-sentinel.com, "Claire’s tip of the week: How to hardboil eggs," 18 Oct. 2019 And while the new parameters aren’t foolproof, an important change is that every franchise will have to annually certify that its executives did not to free agents or their representatives before league rules allow. BostonGlobe.com, "Braves keep NL East crown," 21 Sep. 2019 And while the new parameters aren't foolproof, an important change is that every franchise will have to annually certify that its executives did not to free agents or their representatives before league rules allow. Tim Reynolds, chicagotribune.com, "NBA teams approve stiffer penalties for tampering," 21 Sep. 2019 And while the new parameters aren’t foolproof, an important change is that every franchise will have to annually certify that its executives did not to free agents or their representatives before league rules allow. BostonGlobe.com, "Braves keep NL East crown," 21 Sep. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'foolproof.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of foolproof

1902, in the meaning defined above

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Time Traveler for foolproof

Time Traveler

The first known use of foolproof was in 1902

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Statistics for foolproof

Last Updated

6 Jan 2020

Cite this Entry

“Foolproof.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/foolproof. Accessed 26 January 2020.

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More Definitions for foolproof

foolproof

adjective
How to pronounce foolproof (audio)

English Language Learners Definition of foolproof

: done, made, or planned so well that nothing can go wrong

foolproof

adjective
fool·​proof | \ ˈfül-ˈprüf How to pronounce foolproof (audio) \

Kids Definition of foolproof

: done, made, or planned so well that nothing can go wrong a foolproof recipe

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More from Merriam-Webster on foolproof

Thesaurus: All synonyms and antonyms for foolproof

Rhyming Dictionary: Words that rhyme with foolproof

Spanish Central: Translation of foolproof

Nglish: Translation of foolproof for Spanish Speakers

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