bulletproof

adjective

bul·​let·​proof ˈbu̇-lət-ˌprüf How to pronounce bulletproof (audio)
 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
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.
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 Trump appears behind bulletproof glass at memorial Garrett Haake Reporting from Glendale, Ariz. Trump was seen waving from behind bulletproof glass in the skybox above the crowd. Nbc News, NBC news, 22 Sep. 2025 The president, who survived two assassination attempts last year, delivered his remarks from a podium shielded by bulletproof glass. Ronald J. Hansen, AZCentral.com, 22 Sep. 2025 On the north side of the street, in front of the White House, a covered stage had been set up for the reviewing party, protected by bulletproof glass and flanked by tanks below. Seth Harp, Harpers Magazine, 19 Sep. 2025 See All Example Sentences for bulletproof

Word History

First Known Use

1693, in the meaning defined at sense 1

Time Traveler
The first known use of bulletproof was in 1693

Browse Nearby Words

Cite this Entry

“Bulletproof.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/bulletproof. Accessed 18 Oct. 2025.

Kids Definition

bulletproof

adjective
bul·​let·​proof ˈbül-ət-ˌprüf How to pronounce bulletproof (audio)
: so made as to prevent the passing through of bullets
bulletproof glass

More from Merriam-Webster on bulletproof

Last Updated: - Updated example sentences
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