failproof

English

Etymology

From fail +‎ -proof.

Adjective

failproof (comparative more failproof, superlative most failproof)

  1. Resistant to failure; that cannot go wrong.
    Synonym: failureproof
    Coordinate terms: failsafe, fail-safe, fail safe; failureless
    Near-synonyms: foolproof, idiot-proof

See also