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unfailing

English

  1. 🔊 unceasing
    “unfailing loyalty”
  2. 🔊 always able to supply more
    “an unfailing source of good stories”
  3. 🔊 not liable to failure
    “a foolproof identification system”

Similar words

unflagging foolproof abiding assiduous calculable certain changeless consistent constant continuing dependable devoted diligent dogged durable enduring faithful faithworthy fast firm fixed frozen immobile immutable