bulletproof

[bool-it-proof]

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)

1. to make (something) bulletproof.

bulletproof

/ ˈbʊlɪtˌpruːf /

adjective

1. not penetrable by bullets

   bulletproof glass

verb

1. (tr) to make bulletproof

Word History and Origins

Origin of bulletproof¹

First recorded in 1855–60; bullet + -proof

Example Sentences

Producing statistics is labor-intensive, and the current methods don’t always yield timely, bulletproof information.

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Clad in a bulletproof vest, he held a gun close to his chest.

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He took a hands-on approach to law enforcement, wearing his trademark cowboy hat and a bulletproof vest as he accompanied police during patrols and raids, despite constant threats from criminal groups.

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“I thought I was top of the world, bulletproof,” he says.

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Several FBI agents in bulletproof vests arrested him at the bank’s headquarters in Memphis on Oct.

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Related Words

• impassable 
• impregnable 
• indomitable 
• invulnerable 
• irresistible 
• unassailable 
• unbeatable 
• untouchable