Try Our Apps
Dictionary.com

follow Dictionary.com

The Best Internet Slang

bulletproof

[boo l-it-proof] /ˈbʊl ɪtˌpruf/
adjective
1.
(of vehicles, glass, clothing, etc.) capable of resisting or absorbing the impact of a bullet.
2.
Informal. safe from failure; without errors or shortcomings and beyond criticism:
a bulletproof system; a bulletproof budget.
verb (used with object)
3.
to make (something) bulletproof.
Origin of bulletproof
1855-1860
First recorded in 1855-60; bullet + -proof
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for bulletproof
Contemporary Examples
Historical Examples
British Dictionary definitions for bulletproof

bulletproof

/ˈbʊlɪtˌpruːf/
adjective
1.
not penetrable by bullets: bulletproof glass
verb
2.
(transitive) to make bulletproof
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source

Word of the Day

Difficulty index for bulletproof

Few English speakers likely know this word

Word Value for bulletproof

18
23
Scrabble Words With Friends

Nearby words for bulletproof