bulletproof

• 指能抵挡子弹的，防弹的；也用于比喻，表示无懈可击、极其可靠或不易受到伤害。

Describes something that is resistant to bullets; also used figuratively to mean invulnerable or extremely robust.

1. Impenetrable by bulletsB2formal

   Designed to resist or stop bullets from penetrating.

   防弹

   • The president's car is equipped with bulletproof windows.
   • He wore a bulletproof vest during the dangerous mission.
   • The building's walls are made of bulletproof material.

   同义词armored

   反义词penetrablevulnerable

2. Flawless or without loopholesC1informal

   Describes a plan, argument, or system that is completely secure, without any weaknesses or errors.

   无懈可击

   • The lawyer presented a bulletproof case to the jury.
   • Her business plan was bulletproof, leaving no room for failure.
   • They created a bulletproof security system for the network.

   同义词airtightflawlessfoolproofimpeccableinfallibleironcladunassailablewatertight

   反义词fallibleflawedporousvulnerableweak

• 动词，指使某事物能够抵御故障、损坏或攻击，常被比喻性地用于商业或技术领域。

A verb meaning to make something resistant to failure, damage, or attack, often used metaphorically in business or technology contexts.

1. Make bulletproofC1formal

   To make something resistant to bullets, typically by adding protective materials.

   使防弹

   • The company bulletproofed the armored vehicle for military use.
   • They bulletproofed the windows of the embassy.
   • The vest was bulletproofed with layers of Kevlar.

   同义词armorhardenprotectreinforceshield