bulletproof
Americanadjective
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(of vehicles, glass, clothing, etc.) capable of resisting or absorbing the impact of a bullet.
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Informal. safe from failure; without errors or shortcomings and beyond criticism.
a bulletproof system; a bulletproof budget.
verb (used with object)
adjective
verb
Etymology
Origin of bulletproof
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
You want people who will bulletproof your strategy before reality does.
From MarketWatch • May 6, 2026
The president and other top officials have said a Secret Service officer was shot as the attacker charged a security checkpoint at the hotel, and that he survived thanks to a bulletproof vest.
From BBC • May 1, 2026
Although best known for its use in military helmets and bulletproof vests as well as tires and other industrial equipment, Kevlar is also used to make many household goods.
From The Wall Street Journal • Apr. 9, 2026
"Everything's drone proof and bulletproof," an animated Trump said of the ballroom.
From Barron's • Mar. 31, 2026
“It’s a request from a guy named Carl Abeyta in the Chamisa County Milagro district headquarters for a bunch of bulletproof vests. Now what the hell do I do with a thing like this?”
From "The Milagro Beanfield War" by John Nichols
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.