adjective
- (of vehicles, glass, clothing, etc.) capable of resisting or absorbing the impact of a bullet.
- Informal. safe from failure; without errors or shortcomings and beyond criticism: a bulletproof system; a bulletproof budget.
verb (used with object)
- to make (something) bulletproof.
adjective
- not penetrable by bulletsbulletproof glass
verb
- (tr) to make bulletproof