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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Recent Examples of foolproof
But fear not—Vogue has a foolproof guide for nailing a beach wedding.
—
Christian Allaire, Vogue, 28 Apr. 2025
One of the most foolproof ways to know when severe weather is en route or likely to form is simply to have your smartphone.
—Cody Godwin, USA Today, 23 Apr. 2025
Wear them together for a foolproof spring outfit, or separately with dressier or more casual pieces in your suitcase, depending on the occasion.
—Amelia McBride, Travel + Leisure, 21 Mar. 2025
While no security measure is completely foolproof, combining these practices can significantly reduce the risk of falling victim to infostealer malware.
—Kurt Knutsson, Cyberguy Report, Fox News, 26 Feb. 2025
See All Example Sentences for foolproof
Christian Allaire, Vogue, 28 Apr. 2025
One of the most foolproof ways to know when severe weather is en route or likely to form is simply to have your smartphone.
—Cody Godwin, USA Today, 23 Apr. 2025
Wear them together for a foolproof spring outfit, or separately with dressier or more casual pieces in your suitcase, depending on the occasion.
—Amelia McBride, Travel + Leisure, 21 Mar. 2025
While no security measure is completely foolproof, combining these practices can significantly reduce the risk of falling victim to infostealer malware.
—Kurt Knutsson, Cyberguy Report, Fox News, 26 Feb. 2025
See All Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
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Every great move leaves something behind; the goal isn’t to be perfect but committed.—
Expert Panel®,
Forbes.com,
26 June 2025
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The Nike Cortez sneakers are my go-to—they’re easy, comfortable, and perfect for styling upon arrival, too.—
Elly Leavitt,
Vogue,
26 June 2025
Adjective
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Talent - the big challenge Ensuring a safe, flawless passenger experience and delivering on the team’s strategic mission requires dedicated, experienced employees.—
Judith Magyar,
Forbes.com,
1 July 2025
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Joe Portlock/Getty Images However, since the start of the 2025 season, Norris has been overshadowed by Piastri, who has improved his race starts, leading to flawless qualifying and race performances.—
Saajan Jogia,
MSNBC Newsweek,
27 June 2025
Adjective
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As such, trees grown from seed provide a reliable and affordable (free) option for backyard growers.—
Kim Toscano,
Southern Living,
28 June 2025
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Beyond simply offering a competent and reliable service, however, Lazarus knew that the repair process needed to be streamlined with a client-centric approach from start to finish.—
Victoria Gomelsky,
Robb Report,
27 June 2025
Cite this Entry
“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 8 Jul. 2025.
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