Definition
Being 'bulletproof' means resistant to penetration by bullets; capable of stopping a bullet from passing through. 🛡️ Think of a police officer wearing a bulletproof vest, or a fortified vehicle designed to withstand gunfire. It implies a high level of protection against ballistic threats. 'Bulletproof' suggests invulnerability to a specific type of weapon. It can also be used metaphorically to describe something that is immune to criticism or failure. It's the opposite of being vulnerable to gunfire.