Unfailing: Definition with Unfailing Pictures and Photos

1. Adjective. Not liable to failure. "An unfailing test"

Exact synonyms: Foolproof
Similar to: Infallible

2. Adjective. Always able to supply more. "A subject of unfailing interest"

Similar to: Inexhaustible

3. Adjective. Unceasing. "Unflagging courtesy"

Exact synonyms: Unflagging
Similar to: Constant

1. a. Not failing; not liable to fail; inexhaustible; certain; sure.

2. a. Not failing; not liable to fail; inexhaustible; certain; sure.

1. Adjective. inexhaustible ¹

2. Adjective. changeless ¹

3. Adjective. infallible ¹

¹ Source: wiktionary.com

1. fail [adj] - See also: fail

Lexic.us