What is the meaning of bulletproof?

verb

  • Make bulletproof.
    • usage: "bulletproof the car"

adjective

  • Without flaws or loopholes.
    • usage: "an ironclad contract"; "a watertight alibi"; "a bulletproof argument"
  • Not penetrable by bullets.
    • usage: "bulletproof glass"; "bulletproof vest"
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APAWordNet. (2010). bulletproof. Retrieved September 21, 2026, from http://smartdefine.org/bulletproof/definitions/1169959
ChicagoWordNet. 2010. "bulletproof" http://smartdefine.org/bulletproof/definitions/1169959 (accessed September 21, 2026).
HarvardWordNet 2010, bulletproof, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/bulletproof/definitions/1169959>.
MLAWordNet. "bulletproof" 23 October 2010. Web. 21 September 2026. <http://smartdefine.org/bulletproof/definitions/1169959>