bul·​let·​proof | \ ˈbu̇-lət-ˌprüf also ˈbə- How to pronounce bulletproof (audio) \

Definition of bulletproof

1 : impenetrable to bullets bulletproof glass
2 : not subject to correction, alteration, or modification a bulletproof argument

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Examples of bulletproof in a Sentence

The car has bulletproof windows. The police officer was wearing a bulletproof vest.
Recent Examples on the Web Rovie fired his handgun, striking the driver officer's portable radio positioned on the front of his bulletproof vest. Chase Hunter, azcentral, "Phoenix police identify man fatally shot by officers during struggle over gun," 7 Jan. 2020 But it had been retrofitted with makeshift ballistic panels meant to deflect bullets and was lined with material from bulletproof vests. Corina Knoll, New York Times, "How 2 Drifters Brought Anti-Semitic Terror to Jersey City," 15 Dec. 2019 Christopher Brewster’s body armor, clearing up earlier concerns that rounds possibly penetrated the bulletproof vest. Julian Gill, Houston Chronicle, "Acevedo: Bullet did not pierce slain Houston police sergeant’s vest," 11 Dec. 2019 At the request of the Mayfield High School staff Nov. 19, officers checked on an 18-year-old student who had posted a photo on social media of himself wearing a gas mask, bulletproof vest and holding a gun to his head. cleveland, "Restaurant employee steals co-workers credit card to buy beer: Mayfield Heights Police Blotter," 27 Nov. 2019 Prosecutors had said Fredericka Wagner lied to a grand jury after investigators found two bulletproof vests at her home. John Seewer, Cincinnati.com, "First trial linked to Pike County family slayings set to start," 18 Nov. 2019 As shots were still being fired, Stambaugh grabbed a bulletproof vest and stayed put for five minutes before getting back in his car and driving to the other side of the school. Eileen Kelley, sun-sentinel.com, "Deputy fired for punching handcuffed man in hospital, adding to growing list of Sheriff Tony dismissals," 30 Oct. 2019 An attorney for Paul Aaron, 32, asked a judge to toss out evidence — including a bulletproof vest, firearms, and suspected fentanyl — allegedly seized during Aaron’s arrest in Lowell. BostonGlobe.com, "Top law enforcement officials in New Hampshire on Tuesday cleared a state trooper who had been accused of lying about a major fentanyl trafficking case in federal court,," 30 Oct. 2019 Also seized were a mountain bike and bulletproof vest belonging to the Hartford Police Department. David Owens, courant.com, "Farmington man pleads guilty to drug charges, faces prison," 24 Oct. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'bulletproof.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of bulletproof

1693, in the meaning defined at sense 1

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Time Traveler for bulletproof

Time Traveler

The first known use of bulletproof was in 1693

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Statistics for bulletproof

Last Updated

13 Jan 2020

Cite this Entry

“Bulletproof.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/bulletproof. Accessed 19 January 2020.

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More Definitions for bulletproof


How to pronounce bulletproof (audio)

English Language Learners Definition of bulletproof

: made to stop bullets from going through


bul·​let·​proof | \ ˈbu̇-lət-ˌprüf How to pronounce bulletproof (audio) \

Kids Definition of bulletproof

: made to stop bullets from going through

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Comments on bulletproof

What made you want to look up bulletproof? Please tell us where you read or heard it (including the quote, if possible).


to insert between existing elements

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