different between bulletproof vs knaveproof

English

Alternative forms

• bullet-proof

Etymology

bullet +? -proof

Pronunciation

• IPA^(key): /b?l.?tp?u?f/
• Hyphenation: bul?let?proof

Adjective

bulletproof (comparative more bulletproof, superlative most bulletproof)

1. (of a material) Capable of withstanding a direct shot by a bullet fired from a gun.

   A bulletproof window.

   A bulletproof vest.

2. (idiomatic) Reliable, infallible, sturdy or error-tolerant.
3. (usually of an idea or concept) Unbreakable, very tough.

Synonyms

• (infallible): foolproof

Derived terms

• bulletproof hosting
• bulletproof host
• bulletproof vest

Translations

Verb

bulletproof (third-person singular simple present bulletproofs, present participle bulletproofing, simple past and past participle bulletproofed)

1. To make proof against bullets.
2. (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.

English

Etymology

knave +? -proof

Adjective

knaveproof (comparative more knaveproof, superlative most knaveproof)

1. For a system or body: protected, or designed to be proof against misuse or error; fail-safe.
2. For an idea or plan: infallible, or bulletproof.