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bulletproof
01
built in a way that does not let through any bullets or other projectiles
Example
The bulletproof vest saved the officer's life during the shootout.
The car's bulletproof windows provided security for high-profile individuals.
02
guaranteed to bring success or survive challenges or criticism without being affected
Example
The new security system was designed to be virtually bulletproof against cyberattacks.
Her argument was so well-researched and presented that it seemed bulletproof during the debate.
to bulletproof
01
make bulletproof
