EN

Synonyms for failproof

  • adjective

All synonyms

Adjective

Definitions

  1. adj. 1

    Resistant to failure; that cannot go wrong.

    Near-synonyms: foolproof, idiot-proof

Example sentences

  • foolproof They designed their plan to be foolproof.

Popularity over time

Word1850 → 2019Trend
failproofsteady
foolproofsteady

Use in printed books, per decade from 1850 to 2019.

By length

9 letters
foolproof2
12 letters
failureproof

The small number after each word is its number of syllables (foolproof2 = 2 syllables).