foolproof

English

Etymology

From fool +‎ -proof.

Adjective

foolproof (comparative more foolproof, superlative most foolproof)

1. For a device: protected, or designed to be proof against misuse or error.
2. For an idea or plan: infallible, or bulletproof.

Derived terms

• foolproofly
• foolproofness

Related terms

• idiot-proof

Translations

(device) fail-safe

• Bulgarian: безопасен (bg) (bezopasen)
• Chinese:

  Mandarin: 防呆 (fángdāi)

• Czech: blbuvzdorný (cs)
• Danish: idiotsikker
• German: narrensicher (de), idiotensicher (de)
• Norwegian:

  Bokmål: idiotsikker (no)

  Nynorsk: idiotsikker

• (deprecated template usage) {{trans-mid}}
• Spanish: seguro (es)
• Swedish: idiotsäker

(plan) infallible

• Dutch: onfeilbaar (nl), kogelbestendig (nl)
• (deprecated template usage) {{trans-mid}}
• Spanish: infalible (es)

Verb

foolproof (third-person singular simple present foolproofs, present participle foolproofing, simple past and past participle foolproofed)

1. (transitive) To make foolproof.

   We foolproofed the operations.