| Answer | Crossword Clue |
|---|---|
| SURE | Unfailing |
| SURE | Unfailing. |
| CERTAIN | Unfailing. |
| TRUE | Unfailing. |
| TRUSTY | Unfailing |
| FOOLPROOF | Unfailing |
| OPENSESAME | Unfailing password. |
| PERFECTPITCH | Unfailing tone recognition |
| TRUSTY | Dependable and unfailing |
| unfailingness | UNFAILING, not failing, reliable |
| unfailingly | UNFAILING, not failing, reliable |
| unfailingnesses | UNFAILINGNESS, UNFAILING, not failing, reliable |
