unfailing
Americanadjective
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not failing; not giving way; not falling short of expectation; completely dependable.
an unfailing friend.
-
inexhaustible; endless.
unfailing resources; unfailing good humor.
adjective
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not failing; unflagging
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continuous or unceasing
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sure; certain
Other Word Forms
Etymology
Origin of unfailing
Middle English word dating back to 1350–1400; see origin at un- 1, failing
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
“The Ten Year Affair” handles these twists with unfailing intelligence, capturing the sincere but confusingly improvised mores of marriage today.
From The Wall Street Journal • Oct. 31, 2025
A major contributor to the 7M cult’s perceived creepiness is the dancers' unfailing polish and flat if gleaming expressiveness.
From Salon • Jun. 6, 2024
Jughead was a favourite because of his unfailing devotion to food.
From BBC • Sep. 23, 2023
Though Green’s love for the game is unfailing, it’s not uncritical.
From Los Angeles Times • Dec. 16, 2022
I fell asleep with a pleasant sense of security, an assurance of Karhide’s extraordinary and unfailing kindness to the stranger.
From "The Left Hand of Darkness" by Ursula K. Le Guin
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
