Synonyms:
unfailing
Meaning: always able to supply more; "an unfailing source of good stories"; "a subject of unfailing interest"
Synonyms:
foolproof, unfailing
Meaning: not liable to failure; "a foolproof identification system"; "the unfailing sign of an amateur"; "an unfailing test"
Usage examples
He had the river on his right, and it now became an unfailing guide.
The Beaver brought paper, portfolio, pens, And ink in unfailing supplies: While strange creepy creatures came out of their dens, And watched them with wondering eyes.
Between amusement and pique he continued to stare while the elderly American recovered his breath and De Morbihan jabbered on with unfailing vivacity; and he thought that this closer scrutiny discovered in her face contours suggesting maturity of thought beyond her apparent years--which were somewhat less than the sum of Lanyard's--and with this the suggestion of an elusive, provoking quality of wistful languor, a hint of patient melancholy....