অর্থ : Not liable to failure.
উদাহরণ :
A foolproof identification system.
The unfailing sign of an amateur.
An unfailing test.
সমার্থক : foolproof
অর্থ : Always able to supply more.
উদাহরণ :
An unfailing source of good stories.
A subject of unfailing interest.
অর্থ : Unceasing.
উদাহরণ :
Unfailing loyalty.
Unfailing good spirits.
Unflagging courtesy.
সমার্থক : unflagging
Unfailing meaning in Bengali (Bangla).