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.
Last week, de la Espriella appeared at a rally in Medellin behind bulletproof glass.
From BBC • May 30, 2026
You want people who will bulletproof your strategy before reality does.
From MarketWatch • May 6, 2026
With its bulletproof reputation, the software has spread to factory floors and other workplaces that value safety, precision and tech that won’t glitch.
From The Wall Street Journal • May 2, 2026
Trump confirmed that one officer was shot during the incident but was protected by a bulletproof vest and is expected to be in good condition.
From Salon • Apr. 25, 2026
“Yeah, I read the sign. Why do you have an elephant in a bulletproof vest?”
From "The Son of Neptune" by Rick Riordan
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.
