say it: uhn-FAY-ling
unfailing is an adjective meaning "not liable to failure". It carries 3 recorded senses.
not liable to failure
“a foolproof identification system”
“the unfailing sign of an amateur”
“an unfailing test”
always able to supply more
“an unfailing source of good stories”
“a subject of unfailing interest”
unceasing
“unfailing loyalty”
“unfailing good spirits”
“unflagging courtesy”
Definitions, synonyms and semantic relations for unfailing come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.