bulletproof

== English == === Alternative forms === bullet-proof === Etymology === From bullet +‎ -proof. === Pronunciation === IPA(key): /ˈbʊl.ɪtpɹuːf/ Hyphenation: bul‧let‧proof === Adjective === bulletproof (comparative more bulletproof, superlative most bulletproof) (of a material) Capable of withstanding a direct shot by a bullet fired from a gun. (figurative) Reliable, infallible, sturdy or error-tolerant. ==== Synonyms ==== (infallible): foolproof ==== Derived terms ==== ==== Translations ==== === Verb === bulletproof (third-person singular simple present bulletproofs, present participle bulletproofing, simple past and past participle bulletproofed) (transitive) To make proof against bullets. (transitive, informal) To make resistant to failure. === Noun === bulletproof (plural bulletproofs) (slang) A liquor store