bulletproof
word
Definition
Able to resist the penetration of bullets. Figuratively, impossible to criticize, defeat, or find fault with; completely solid and reliable.
Usage & Nuances
Literal: 'bulletproof vest/glass/car'. Figurative (very common): 'a bulletproof argument/plan/alibi/excuse'. 'Bulletproof coffee' is a specific recipe (coffee + butter + MCT oil) popularized by a wellness brand. Can describe a person: 'She felt bulletproof after her promotion.'
Example Sentences
Her alibi is bulletproof — she was on camera the entire evening.
natural
No plan is completely bulletproof, but this one comes close.
natural
He felt bulletproof in his twenties, taking risks no sane person would consider.
natural
The president's car has bulletproof windows.
basic
Make sure your argument is bulletproof before presenting it.
basic
Police officers wear bulletproof vests for protection.
basic