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

Mr Cotler was provided with bulletproof vehicles, heavily armed officers and other security measures for protection.

From BBC

Nearby, in Arizona — also a battleground state for the presidential election — Democratic Secretary of State Adrian Fontes revealed in a recent court hearing that he wears a bulletproof vest during election season.

From Los Angeles Times

Panic buttons and bulletproof glass have been installed at election offices, which are also monitoring mail for envelopes laced with fentanyl.

From Los Angeles Times

In fact, it remains the 38th best-selling album of all time - a statistic that's almost bulletproof in the streaming era.

From BBC

Many of his supporters have disavowed the election system — some poll workers are wearing bulletproof vests — and have threatened force to return him to power.

From Los Angeles Times

Related Words

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