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Not failing; not liable to fail; inexhaustible; certain; sure. Dryden. -- Un*fail"ing*ly, adv. -- Un*fail"ing*ness, n.

t animals (as the wild goat, the gazelle, and the Peruvian llama) formerly regarded as an unfailing antidote for poison, and a certain remedy for eruptive, pestilential, or putrid diseases. Hence: Any antidote or panacea.

Unfailing; infallible. I have often wished that I knew as certain a remedy for any other distemper. Mead.

e cause; result; consequence; outcome; fruit; as, the effect of luxury. The effect is the unfailing index of the amount of the cause. Whewell.

Not defectible; unfailing; not liable to defect, failure, or decay. An indefectible treasure in the heavens. Barrow. A state of indefectible virtue and happiness. S. Clarke.

Incapable of being exhausted, emptied, or used up; unfailing; not to be wasted or spent; as, inexhaustible stores of provisions; an inexhaustible stock of elegant words. Dryden. An inexhaustible store of anecdotes. Macaulay. -- In`ex*haust"i*ble*ness, n. -- In`ex*haust"i*bly, adv.

In an infallible manner; certainly; unfailingly; unerringly. Blair.

Neverceasing; continuing forever or for an unlimited time; unfailing; everlasting; continuous. Unto the kingdom of perpetual night. Shak. Perpetual feast of nectared sweets. Milton. Circle of perpetual apparition, or occultation. See under Circle. -- Perpetual calendar, a calendar so devised that it may be adjusted fo…

Fit or worthy to be depended on; certain not to fail or disappoint expectation; unfailing; strong; permanent; enduring. "His sure word." Keble. The Lord will certainly make my lord a sure house; because my lord fighteth the battles of the Lord. 1 Sam. xxv. 28. The testimony of the Lord is sure. Ps. xix. 7. Which put in…

Committing no mistake; incapable or error or failure certain; sure; unfailing; as, the unerring wisdom of God. Hissing in air the unerring weapon flew. Dryden.