unfailing

[ uhn-fey-ling ]

/ ʌnˈfeɪ lɪŋ /

not failing; not giving way; not falling short of expectation; completely dependable: an unfailing friend.

inexhaustible; endless: unfailing resources; unfailing good humor.

Origin of unfailing

Middle English word dating back to 1350–1400; see origin at un-¹, failing

un·fail·ing·ly, adverb un·fail·ing·ness, noun

He was renowned for his wit, disarming his critics with unfailing humor.

Boris Johnson’s Churchill Man Crush |Michael F. Bishop |November 22, 2014 |DAILY BEAST
He has the potential to complicate the unfailing friendliness of Jimmy Fallon by peppering in a little bite.

Seth Meyers Gets Off to a Rocky Start on 'Late Night' |Kevin Fallon |February 25, 2014 |DAILY BEAST
“He had an unfailing ability to make just the right gesture at just the right time,” de Klerk wrote.

Mandela: The Miracle Maker |Sam Seibert |December 5, 2013 |DAILY BEAST
Plus, a phone call from “NSFWCorp” is an unfailing conversation piece.

Journalism’s Least Safe and Most Intriguing Site: NSFWCorp.com |Winston Ross |August 10, 2013 |DAILY BEAST

The Golden Girls were honest and relatable, but there was something more: intense, unfailing, real friendships.

Happy 25th Birthday, Golden Girls! |Andy Dehnart |November 12, 2010 |DAILY BEAST
She was sewing a long seam, and her needle went in and out with unfailing regularity.

It Might Have Been |Emily Sarah Holt
His dog-like fidelity surrounded her with unfailing service.

The Lamp in the Desert |Ethel M. Dell
He became a distinct personality in Mark Twain's work—the memory of him was an unfailing delight.

Mark Twain, A Biography, 1835-1910, Complete |Albert Bigelow Paine
I have a remedy which I know to be unfailing for any disease.

Carmen Ariza |Charles Francis Stocking
Harmony is the normal condition of Nature, as proven by the unfailing and immediate response of growth to its influence.

Happiness as Found in Forethought Minus Fearthought |Horace Fletcher

unfailing

/ (ʌnˈfeɪlɪŋ) /

not failing; unflagging

continuous or unceasing

sure; certain

unfailingly, adverb unfailingness, noun