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
Here’s how to style drawstring jeans for spring and beyond in five foolproof outfit ideas.
—
India Roby, Glamour, 18 Mar. 2026
Make things simpler by building your wardrobe around a few foolproof hero pieces.
—Amanda Le, InStyle, 14 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
See All Example Sentences for foolproof
India Roby, Glamour, 18 Mar. 2026
Make things simpler by building your wardrobe around a few foolproof hero pieces.
—Amanda Le, InStyle, 14 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
See All Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
-
Either way, this decisive energy favors clear asks and tangible action over chasing perfect conditions.—
Tarot.com,
New York Daily News,
9 Apr. 2026
-
Johansson took a perfect pass from Boldy right on the doorstep to beat Kraken goalie Joey Daccord, who finished with 24 saves.—
CBS News,
CBS News,
8 Apr. 2026
Adjective
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Hyaluronic acid and collagen help visibly hydrate and plump skin, smoothing the appearance of lines, crow’s feet and crepey texture for a flawless makeup look.—
Tory Johnson,
ABC News,
7 Apr. 2026
-
With their flawless tresses blowing in the wind, the original trio (from left, Kate Jackson, Farrah Fawcett and Jaclyn Smith) locked arms during a photoshoot in June 1976.—
Stephanie Sengwe,
PEOPLE,
7 Apr. 2026
Adjective
-
The Giants became the first National League team to seven losses, and although 10 games is not a representative sample, there’s never a good time in a season for a team’s most reliable veterans to play sloppily or make decisions on tilt.—
Andrew Baggarly,
New York Times,
6 Apr. 2026
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These are not tools that belong in a corporate leader’s operational playbook, but products of necessity arising from the absence of reliable governance.—
Jeffrey Sonnenfeld,
Fortune,
6 Apr. 2026
Cite this Entry
“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 14 Apr. 2026.
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