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.
The plates could have been used as inserts in a bulletproof vest, but Alvarez was not found to have a vest, according to court documents.
From Los Angeles Times ● Sep. 9, 2026
Businesses are using AI to reduce labor and other expenses and to generate record profit margins that seem bulletproof.
From MarketWatch ● Aug. 20, 2026
The Justices have been issued bulletproof vests, a fact that Justice Barrett said was difficult to explain to her 12-year-old son.
From The Wall Street Journal ● Jul. 14, 2026
Last week, de la Espriella appeared at a rally in Medellin behind bulletproof glass.
From BBC ● May 30, 2026
Thank God the glass ceiling is bulletproof, or the glass would break and I would fall to my death.
From "Divergent" by Veronica Roth
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.
