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.
Related Words
Relevance
Dissimilar Words
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of foolproof
But maybe throwing your script into a pit of other scripts in the hopes of earning someone’s attention was never a foolproof strategy.
—
Harrison Richlin, IndieWire, 6 May 2025
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
See All Example Sentences for foolproof
Harrison Richlin, IndieWire, 6 May 2025
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
See All Example Sentences for foolproof
Recent Examples of Synonyms for foolproof
Adjective
-
In the post’s third slide, Mahomes posed alongside her husband Patrick Mahomes, and their two children, Sterling and Bronze, while wearing a plain T-shirt, black shorts, and a fuss-free crossbody bag perfect for days spent chasing little ones.—
Averi Baudler,
People.com,
20 July 2025
-
There's a wealth of options these days, from little soft-sided coolers perfect for a day trip to heavy-duty, high-performance wheeled coolers with ice retention times that seem to defy the sun—like our top pick, the Yeti Tundra Haul ($450).—
Louryn Strampe,
Wired News,
20 July 2025
Adjective
-
The illusion was flawless, the synchronization perfect.—
Luciana Cemerka,
Forbes.com,
22 July 2025
-
Any robotaxi service, Waymo included, needs to be virtually flawless in order to scale the service safely—yet with Tesla there’s no sign of that, according to Martinez.—
Christiaan Hetzner,
Fortune,
20 July 2025
Adjective
-
One of his key issues remains securing clean, reliable water supplies for rural and tribal communities in need.—
Arlyssa D. Becenti,
AZCentral.com,
23 July 2025
-
By the time Osbourne returned to Milwaukee for a March 5, 1984, concert at the Arena, his concerts had a reliable opening act: protesters outside the venue, criticizing Osbourne and rockers like him for performing the devil's music.—
Chris Foran,
jsonline.com,
23 July 2025
Cite this Entry
“Foolproof.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/foolproof. Accessed 28 Jul. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share