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

Examples of unfailing in a Sentence

She is known for her unfailing optimism. an unfailing judge of personal character
Recent Examples on the Web If your style is more corporate than casual, silk and polka dots are an unfailing mix. Alyssa Grabinski, Peoplemag, 3 Apr. 2024 In addition to writing about God’s unfailing love, Guthrie also addresses the tough questions that people of faith may grapple with: Why would an all-powerful God allow suffering? Erin Jensen, USA TODAY, 20 Feb. 2024 On some dramas, such bad behavior can be part of the draw; no one is watching Euphoria or Yellowjackets for the unfailing kindness of their leads. Angie Han, The Hollywood Reporter, 7 Dec. 2023 Fleece as a material offers one of the most unfailing protection against the cold elements. Maverick Li, Men's Health, 29 Dec. 2022 The annual National Philanthropy Day luncheon is consistently an unfailing feel-good fete as the Northwest Arkansas Chapter of the Association of Fundraising Professionals lauds area philanthropists and this year's was no exception. Carin Schoppmeyer, arkansasonline.com, 3 Dec. 2023 The economic conventions that policymakers had relied on since the Berlin Wall fell more than 30 years ago — the unfailing superiority of open markets, liberalized trade and maximum efficiency — look to be running off the rails. Patricia Cohen, New York Times, 18 June 2023 Instead, Morales wants to be celebrated for his unfailing desire to do good and achieve excellence. Jay Caspian Kang, The New Yorker, 16 June 2023 But this is Happy Endings, where his unfailing commitment to increasingly ludicrous personality traits places the joke on Dave. Sophy Ziss, Vulture, 10 Nov. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'unfailing.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

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 20 Jun. 2024.

Kids Definition


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

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