FOOLPROOF
Scrabble letter values: F4O1O1L1P3R1O1O1F4 = 17
Definition
- adjective not liable to failure. — synonyms: unfailing
- verb proof against human misuse or error. — synonyms: goofproof, goof-proof
Examples
- “a foolproof identification system”
- “the unfailing sign of an amateur”
- “an unfailing test”