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
Before the biggest scandal to hit his tenure - the aborted Fifa Forward Enterprise plan - Infantino was an incredibly powerful figure who appeared bulletproof.
From BBC ● Aug. 7, 2026
Regan told some prospective clients that his investments had “zero risk” and likened the purported insurance to “a bulletproof vest that you can wake up with and go to sleep with.”
From The Wall Street Journal ● Jun. 29, 2026
I have a bulletproof portfolio that is 100% in large-cap U.S. stocks and I live off the dividend income.
From MarketWatch ● Jun. 3, 2026
Jacket, pants, cap, boots, and bulletproof vest, like the kind the police have, but more heavy-duty and with shiny black plates across the front, like something Batman might wear.
From "Internment" by Samira Ahmed
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.
