Failproof
adj
adj ·Rare ·Advanced level
Definitions
Adjective
- 1 Resistant to failure; that cannot go wrong.
"Near-synonyms: foolproof, idiot-proof"
Example
More examples"Appealing to the lowest common denominator is a failproof way to get sales or votes."
Etymology
From fail + -proof.
More for "failproof"
Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.