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
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
How To Make It This is truly one of the easiest and most foolproof meals out here.
—Cameron Beall, Southern Living, 17 Feb. 2025
See All Example Sentences for foolproof
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
How To Make It This is truly one of the easiest and most foolproof meals out here.
—Cameron Beall, Southern Living, 17 Feb. 2025
See All Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
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On Saturday, Jones wasn’t available to save her team and its perfect record.—
Fiifi Frimpong,
New York Daily News,
14 June 2025
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The group combined for nine strikeouts, five by Shawn Armstrong in his three perfect innings to begin the game.—
LaMond Pope,
Chicago Tribune,
14 June 2025
Adjective
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Road playoff wins also require flawless help defense and execution down the stretch, especially against an historically great team that entered the Finals 80-18.—
Shane Young,
Forbes.com,
6 June 2025
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The number of squeaky-clean eateries across South Florida took a dip last month, with the state posting its lowest count of flawless inspections since June 2023.—
Phillip Valys,
Sun Sentinel,
5 June 2025
Adjective
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Lightweight, quick-drying, and trail-tough, these pants have been a reliable companion for hiking and travel.—
Michael Cappetta,
Travel + Leisure,
4 June 2025
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Its toll is seen as generally reliable by U.N. agencies and independent experts, though Israel has challenged its numbers.—
Wafaa Shurafa,
Los Angeles Times,
4 June 2025
Cite this Entry
“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 18 Jun. 2025.
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