Standard Lemma guide

bulletproof

adj · noun · verb · 8 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /ˈbʊlɪtpɹuːf/
  • British, Southern, Standard: /ˈbɵlɪtpɹʉwf/
  • General-American: /ˈbʊlɪtpɹuf/
  • Australian, New-Zealand: /ˈbʊlɪtpɹʉːf/
  • Australia: Recorded audio is listed in the source snapshot.
  • Scotland: /ˈbʉlɪtpɾʉf/
  • Northern-Ireland: /ˈbʉlɪtpɹʉf/
  • CMU ARPABET: B UH1 L AH0 T P R UW2 F Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

adj

Meaning 1

Capable of withstanding a direct shot by a bullet fired from a gun.

Definition source: English Wiktionary via Wiktextract

Examples

  • bulletproof window
  • bulletproof vest
  • bulletproof car.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

adj

Meaning 2

Reliable, infallible, sturdy or error-tolerant.

Definition source: English Wiktionary via Wiktextract

Usage: figuratively

Examples

  • bulletproof hosting

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

noun

Meaning 3

A liquor store

Definition source: English Wiktionary via Wiktextract

Usage: slang

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

4

verb

Meaning 4

To make proof against bullets.

Definition source: English Wiktionary via Wiktextract

Usage: transitive

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

5

verb

Meaning 5

To make resistant to failure.

Definition source: English Wiktionary via Wiktextract

Usage: informal, transitive

Examples

  • 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.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

6

adjective satellite

Meaning 6

not penetrable by bullets

Definition source: Princeton WordNet 3.0

Examples

  • bulletproof glass
  • bulletproof vest

Meaning relationships

Synonyms: none provided

Antonyms: none provided

7

adjective satellite

Meaning 7

without flaws or loopholes

Definition source: Princeton WordNet 3.0

Examples

  • an ironclad contract
  • a watertight alibi
  • a bulletproof argument

Meaning relationships

Synonyms: unassailable, unshakable, watertight

Antonyms: none provided

8

verb

Meaning 8

make bulletproof

Definition source: Princeton WordNet 3.0

Examples

  • bulletproof the car

Meaning relationships

Synonyms: none provided

Antonyms: none provided

Broader terms: proof

History

Etymology

Etymology tree English bullet English proof English -proof English bulletproof From bullet + -proof.

Across languages

Translations

51 source translations are retained for this English entry.

  • Afrikaans: koeëlvas — capable of withstanding a bullet
  • Belarusian: куленепрабіва́льны (kuljenjeprabiválʹny) — capable of withstanding a bullet
  • Catalan: antibales — capable of withstanding a bullet
  • Catalan: a prova de bales — capable of withstanding a bullet
  • Chinese Mandarin: 防彈 /防弹 (fángdàn) — capable of withstanding a bullet
  • Czech: neprůstřelný — capable of withstanding a bullet
  • Danish: skudsikker — capable of withstanding a bullet
  • Dutch: kogelvrij — capable of withstanding a bullet
  • Finnish: luodinkestävä — capable of withstanding a bullet
  • French: pare-balle — capable of withstanding a bullet
  • French: blindé — capable of withstanding a bullet
  • Galician: antibalas — capable of withstanding a bullet
  • Georgian: ტყვიაგაუმტარი (ṭq̇viagaumṭari) — capable of withstanding a bullet
  • German: kugelsicher — capable of withstanding a bullet
  • German: schusssicher — capable of withstanding a bullet
  • German: schussfest — capable of withstanding a bullet
  • Greek: αλεξίσφαιρος (alexísfairos) — capable of withstanding a bullet
  • Hungarian: golyóálló — capable of withstanding a bullet
  • Ido: kuglespruva — capable of withstanding a bullet
  • Indonesian: tahan peluru — capable of withstanding a bullet
  • Indonesian: antipeluru — capable of withstanding a bullet
  • Italian: antiproiettile — capable of withstanding a bullet
  • Japanese: 防弾 (bōdan) — capable of withstanding a bullet
  • Kazakh: оқ дарытпайтын (oq darytpaityn) — capable of withstanding a bullet
  • Kazakh: оқ өтпейтін (oq ötpeitın) — capable of withstanding a bullet
  • Korean: 방탄의 (bangtanui) — capable of withstanding a bullet
  • Malay: kalis peluru — capable of withstanding a bullet
  • Norwegian Bokmål: skuddsikker — capable of withstanding a bullet
  • Polish: kuloodporny — capable of withstanding a bullet
  • Portuguese: à prova de balas — capable of withstanding a bullet
  • Portuguese: antibalas — capable of withstanding a bullet
  • Romanian: antiglonț — capable of withstanding a bullet
  • Russian: пуленепробива́емый (puleneprobivájemyj) — capable of withstanding a bullet
  • Slovak: nepriestrelný — capable of withstanding a bullet
  • Slovene: neprebojen — capable of withstanding a bullet
  • Spanish: antibalas — capable of withstanding a bullet
  • Spanish: a prueba de balas — capable of withstanding a bullet
  • Spanish: blindado — capable of withstanding a bullet
  • Swedish: skottsäker — capable of withstanding a bullet
  • Thai: กันกระสุน (gan-grà-sǔn) — capable of withstanding a bullet
  • Turkish: kurşun geçirmez — capable of withstanding a bullet
  • Ukrainian: куленепробивни́й (kuleneprobyvnýj) — capable of withstanding a bullet
  • Catalan: infal·lible — reliable, infallible
  • Finnish: pomminvarma — reliable, infallible
  • French: à toute épreuve — reliable, infallible
  • French: inattaquable — reliable, infallible
  • French: infaillible — reliable, infallible
  • Georgian: უტყუარი (uṭq̇uari) — reliable, infallible
  • Georgian: სარწმუნო (sarc̣muno) — reliable, infallible
  • German: wasserdicht — reliable, infallible
  • Spanish: infalible — reliable, infallible
Real reading context

bulletproof in complete knowledge articles