Idiot-proof synonyms | adjectives

Synonyms for Idiot-proof as an Adjective

• certain

  infallible
• reliable

  infallible
• guaranteed

  infallible
• sure-fire

  infallible
• flawless

  infallible
• dependable
• sure
• unfailing
• safe
• perfect
• unassailable
• tested
• tried
• fail-safe
• faultless
• unerring
• goofproof
• never-failing
• infallible
• foolproof
• uncomplicated
• simple
• straightforward
• undemanding
• unchallenging
• trouble-free
• painless
• effortless
• easy
• elementary
• trustworthy
• tried and tested
• effective
• goof-proof
• sound
• watertight
• airtight
• efficacious
• clear
• accessible
• basic
• unsophisticated
• piece of cake
• cinch
• breeze
• easy-to-use
• intuitive
• usable
• practical
• ergonomic