unfailing   (Sound)

The adj unfailing has 3 senses

• foolproof, unfailing -- (not liable to failure; "a foolproof identification system"; "the unfailing sign of an amateur"; "an unfailing test")


• unfailing -- (always able to supply more; "an unfailing source of good stories"; "a subject of unfailing interest")


• unfailing, unflagging -- (unceasing; "unfailing loyalty"; "unfailing good spirits"; "unflagging courtesy")