idiot-proof

[ id-ee-uht-proof ]
See synonyms for idiot-proof on Thesaurus.com
adjective
  1. built, organized, written, etc., in such a way as to be usable by or understandable to any person of average intelligence or skill: an idiot-proof camera.

Origin of idiot-proof

1
Probably earlier than 1975–80

Words Nearby idiot-proof

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