foolproof
adjective
fool·proof
ˈfül-ˌprüf 
: so simple, plain, or reliable as to leave no opportunity for error, misuse, or failure
a foolproof plan
Examples of foolproof in a Sentence
DNA fingerprinting gives police a virtually foolproof way to link a suspect to a crime scene.
Recent Examples on the Web
Get your compression cubes ready for action and read on for my foolproof ski trip carry-on packing list.
—
Terry Ward, Travel + Leisure, 7 Dec. 2024
Those, along with a Dyson cordless vacuum and a pair of Spanx leather leggings, a brand that has made it on to Oprah’s Favorite Things list, are foolproof winners under the tree — preferably this artificial one from Walmart.
—Alyssa Grabinski, People.com, 2 Dec. 2024
Here's how to make a half-dozen foolproof cookie recipes, including chocolate chip cookies, lemon bars and snickerdoodles.
—The Arizona Republic, 28 Nov. 2024
Taking a look at your user manual is the most foolproof way to find out how your microwave ticks, but all is not lost even if your manual is.
—Audrey Bruno, SELF, 14 Oct. 2024
See all Example Sentences for foolproof 
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Terry Ward, Travel + Leisure, 7 Dec. 2024
Those, along with a Dyson cordless vacuum and a pair of Spanx leather leggings, a brand that has made it on to Oprah’s Favorite Things list, are foolproof winners under the tree — preferably this artificial one from Walmart.
—Alyssa Grabinski, People.com, 2 Dec. 2024
Here's how to make a half-dozen foolproof cookie recipes, including chocolate chip cookies, lemon bars and snickerdoodles.
—The Arizona Republic, 28 Nov. 2024
Taking a look at your user manual is the most foolproof way to find out how your microwave ticks, but all is not lost even if your manual is.
—Audrey Bruno, SELF, 14 Oct. 2024
See all Example Sentences for foolproof
Dictionary Entries Near foolproof
Cite this Entry
“Foolproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/foolproof. Accessed 22 Dec. 2024.
Copy CitationKids Definition
foolproof
adjective
fool·proof
ˈfül-ˈprüf
: done, made, or planned so well that nothing can go wrong
foolproof directions
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