Definition of foolproof in English:

Share this entry

foolproof

Pronunciation: /ˈfuːlpruːf/

adjective

Incapable of going wrong or being misused: a foolproof security system
More example sentences
  • Bee-eaters have worked out a foolproof security system for the nest.
  • True, democracy and the rule of law provide no foolproof security guarantee.
  • Come up with a foolproof security system and stop other men like you from stealing priceless works of art.
Synonyms
infallible, never failing, unfailing, unerring, dependable, reliable, trustworthy, certain, sure, guaranteed, safe, sound, effective, efficacious, tried and tested;
watertight, airtight, flawless, perfect
informal sure-fire

For editors and proofreaders

Line breaks: fool|proof

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.