bulletproof
bulletproof — adjective
- bulletproofpositive
- more bulletproofcomparative
- most bulletproofsuperlative
1. made of material thick or strong enough that a bullet cannot go through it
made of material thick or strong enough that a bullet cannot go through it
The bank teller stood safely behind a thick wall of bulletproof glass.
common collocation: bulletproof glass
Soldiers in the convoy wore bulletproof vests under their green jackets.
common collocation: bulletproof vest
Yasmin tested whether the new car door was truly bulletproof at the range.
The museum keeps its most famous painting inside a bulletproof case.
Police officers in the city are now issued bulletproof helmets for riots.
- armored
covered with protective metal plates; broader than just stopping bullets
- bullet-resistant
the precise industry term; admits that no material stops every bullet
用法筆記
Almost always used before a noun (bulletproof glass, vest, car). Subjects are physical barriers or protective gear, not people.
2. so strong, careful, or well prepared that nobody can find a weak point to attack
so strong, careful, or well prepared that nobody can find a weak point to attack or criticize
The lawyer built a bulletproof case, and the other side could find no weak point.
figurative: a plan or argument with no weakness
Aarav thought his excuse was bulletproof until his sister showed the photos.
The team spent months making the new software almost bulletproof against hackers.
Her business plan looked bulletproof, so the bank approved the loan within a week.
No politician is truly bulletproof; one small scandal can end a long career.
- watertight
of an argument or plan with no gaps; very close in meaning but slightly more formal
- foolproof
so simple it cannot go wrong; about ease of use, not resistance to attack
- invincible
impossible to defeat; stronger and more often about people or armies
- flawed
having a weak point that can be attacked
用法筆記
Informal and figurative. Typical subjects are plans, arguments, alibis, systems, or reputations rather than physical objects. Distinguish from sense 1, which describes real protection against actual bullets.