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Bulletproof - What does it mean?

bulletproof | |

bulletproof

English

Alternative forms

* bullet-proof

Adjective

(en adjective)
  • (of a material) Capable of withstanding a direct shot by a bullet fired from a gun.
    • A bulletproof window.
    A bulletproof vest.
  • (idiomatic) reliable, infallible, sturdy or error-tolerant.
  • (usually, of an idea or concept) Unbreakable, very tough.

    • Synonyms

    * (infallible) foolproof

    Verb

    (en verb)
  • To make proof against bullets.
  • (slang) to make resistant to failure.
    • We have to bulletproof this program before we let the users at it; check every input, catch every possible flaw...it must not fail in use.

    Not English

    has no English definition. It may be misspelled.