unfailing

adjective

un·​fail·​ing ˌən-ˈfā-liŋ How to pronounce unfailing (audio)
: not failing or liable to fail:
a
: constant, unflagging
unfailing courtesy
b
: everlasting, inexhaustible
a subject of unfailing interest
c
: infallible, sure
an unfailing test
unfailingly adverb

Example Sentences

She is known for her unfailing optimism. an unfailing judge of personal character
Recent Examples on the Web Adapted by Bairéad — whose background is in television and documentaries — from Claire Keegan’s short story, Foster, this is a work of unfailing restraint, which makes its stealth emotional heft all the more remarkable. David Rooney, The Hollywood Reporter, 24 Oct. 2022 Multiple forms of climate leadership, leveraging each other, are needed to get the job done — as long as the work is guided by science, a commitment to equity and justice, and an unfailing moral compass. CNN, 20 Oct. 2022 So many books of short fiction are, understandably, hit or miss; Jones here is unfailing. Molly Mcardle, Men's Health, 3 Oct. 2022 Much of the funeral service touched on the Queen's unfailing commitment to service and her country. Kate Hogan, Peoplemag, 19 Sep. 2022 John Lorenzo Hubbell bought the post in 1878 and quickly earned a reputation for fairness and honesty in his business dealings, and his unfailing hospitality. Roger Naylor, The Arizona Republic, 5 Aug. 2022 George gives it a good go, though, and Westman brings an unfailing optimism to a put-upon character. Bill Goodykoontz, The Arizona Republic, 12 May 2022 Steve Breyer is a scholar and gentleman, an independent judge and fierce patriot, a man of great wisdom and humor, a collegial consensus-builder and unfailing optimist. Ellen Uchimiya, CBS News, 28 Jan. 2022 Whether by serendipity or study, the act of discovery is an unfailing thrill. Paul Croughton, Robb Report, 12 Dec. 2021 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'unfailing.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Word History

First Known Use

14th century, in the meaning defined above

Time Traveler
The first known use of unfailing was in the 14th century

Dictionary Entries Near unfailing

Cite this Entry

“Unfailing.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/unfailing. Accessed 4 Dec. 2022.

Kids Definition

unfailing

adjective

un·​fail·​ing ˌən-ˈfā-liŋ How to pronounce unfailing (audio)
ˈən-
1
: not likely to fail : constant, unflagging
unfailing support
2
: not likely to run out or be used up : everlasting, inexhaustible
an unfailing supply
3
: infallible sense 2
the unfailing mark of an amateur
unfailingly adverb

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