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
Worcestershire, dry mustard, and ground red pepper combine with your go-to cheese, for a foolproof party snack.
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Krissy Tiglias, Southern Living, 22 Sep. 2024
Conclusion These recommendations are not foolproof solutions that will prevent every issue, such as a blue screen caused by a necessary system update.
—Stoyan Mitov, Forbes, 20 Sep. 2024
That’s why leaning on the opinions of fellow shoppers is an almost foolproof way of discovering products that actually work.
—Maya Gandara, StyleCaster, 4 Sep. 2024
These foolproof travel outfits can be mixed and matched for any activity, and start at $42.
—Jean Chen Smith, Travel + Leisure, 3 Sep. 2024
See all Example Sentences for foolproof 
Krissy Tiglias, Southern Living, 22 Sep. 2024
Conclusion These recommendations are not foolproof solutions that will prevent every issue, such as a blue screen caused by a necessary system update.
—Stoyan Mitov, Forbes, 20 Sep. 2024
That’s why leaning on the opinions of fellow shoppers is an almost foolproof way of discovering products that actually work.
—Maya Gandara, StyleCaster, 4 Sep. 2024
These foolproof travel outfits can be mixed and matched for any activity, and start at $42.
—Jean Chen Smith, Travel + Leisure, 3 Sep. 2024
See all Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
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This solution is also perfect to prepare for emergency power outages.Tyler Shepherd, USA TODAY, 11 Dec. 2024
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For instance, a page showcasing a pile of puppies is perfect for your friend who adores dogs.Mary Cornetta, Better Homes & Gardens, 10 Dec. 2024
Adjective
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Madison is flawless in these closing scenes: stunned, heartbroken, unable to respond to the tentative romantic gestures of a Russian henchman who's taken a shine to her.Tom Gliatto, People.com, 11 Dec. 2024
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Nicholas Hunter goes from glib to gripping as Whizzer; Max Green adds a hilarious goofiness to unconventional psychiatrist Mendel; and Juno McQueen is flawless as Jason, often the wisest character onstage.Michael Barnes, Austin American-Statesman, 10 Dec. 2024
Adjective
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And while that’s not a reason to abandon AI tools, a recent study should remind programmers that even reliable versions of the technology are still prone to bouts of weirdness—like claiming knee X-rays can prove someone drinks beer or eats refried beans.Andrew Paul, Popular Science, 13 Dec. 2024
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The Geminids, which are bright and have a yellow hue, are considered one of the best and most reliable annual meteor showers, when at least 120 meteors are usually seen per hour during its peak, NASA says.Chandelis Duster, NPR, 12 Dec. 2024
Thesaurus Entries Near foolproof
Cite this Entry
“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 23 Dec. 2024.
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