bulletproof
Americanadjective
-
(of vehicles, glass, clothing, etc.) capable of resisting or absorbing the impact of a bullet.
-
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.
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
The next round number could be reached in record time, and the bond market may no longer look bulletproof when the smoke clears.
From The Wall Street Journal • Mar. 24, 2026
McArthur said the result was a "bulletproof" bill which amounted to "the toughest and most comprehensively-safeguarded" such legislation in the world.
From BBC • Mar. 16, 2026
“I’m not saying the stock market is bulletproof, but you theoretically take those two risks right off the table.”
From Barron's • Feb. 24, 2026
A smattering of other men in bulletproof vests, sunglasses, and black caps all looked up.
From "Zeitoun" by Dave Eggers
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.
