bulletproof
adjective
bul·let·proof
ˈbu̇-lət-ˌprüf 
also ˈbə-
1
: impenetrable to bullets
bulletproof glass
2
: not subject to correction, alteration, or modification
a bulletproof argument
3
Examples of bulletproof in a Sentence
The car has bulletproof windows.
The police officer was wearing a bulletproof vest.
Recent Examples on the Web
During his campaign in August 2024, Trump spoke behind a bulletproof glass enclosure in Asheboro, N. C., five weeks after an assassination attempt in Butler, Penn.
—
Preston Fore, Fortune, 23 Sep. 2025
Items procured in this manner included a bulletproof Escalade, high-end watches, and a 19-foot LED television.
—Bethy Squires, Vulture, 15 Aug. 2025
Its applications include protective motorcycle gear, hockey neck guards that will prevent cuts from skates and even bulletproof vests.
—Ian Servantes, Footwear News, 5 Aug. 2025
The Blue Ash woman is seen wearing what appears to be a type of black tactical, possibly bulletproof vest and had a helmet nearby.
—David Ferrara, The Enquirer, 2 July 2025
See All Example Sentences for bulletproof
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Preston Fore, Fortune, 23 Sep. 2025
Items procured in this manner included a bulletproof Escalade, high-end watches, and a 19-foot LED television.
—Bethy Squires, Vulture, 15 Aug. 2025
Its applications include protective motorcycle gear, hockey neck guards that will prevent cuts from skates and even bulletproof vests.
—Ian Servantes, Footwear News, 5 Aug. 2025
The Blue Ash woman is seen wearing what appears to be a type of black tactical, possibly bulletproof vest and had a helmet nearby.
—David Ferrara, The Enquirer, 2 July 2025
See All Example Sentences for bulletproof
Cite this Entry
“Bulletproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bulletproof. Accessed 10 Oct. 2025.
Copy CitationKids Definition
bulletproof
adjective
bul·let·proof
ˈbül-ət-ˌprüf
: so made as to prevent the passing through of bullets
bulletproof glass
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