1
as in unerring
not being or likely to be wrong
an unfailing judge of personal character
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in reliable
not likely to fail
the writer's unfailing sense of humor is again evident in his newest book
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of unfailing
Developed at the height of the Cold War, GPS was designed by the Pentagon to give US forces an unfailing sense of position anywhere on Earth.
—
Kapil Kajal,
Interesting Engineering,
11 Sep. 2025
In a world where trust now comes at a premium, trust in your GenAI strategy starts with trusting the data that fuels it, and the most unfailing data in your business lives in your contracts.
—
Monish Darda,
Forbes.com,
8 Sep. 2025
Yesterday’s pangrams were gainful, unfailing and unflagging.
—
Julia Jacobs,
New York Times,
19 May 2025
What is most important, always, is an unfailing loyalty to Trump.
—
Constance Grady,
Vox,
25 Apr. 2025
See All Example Sentences for unfailing
Kapil Kajal,
Interesting Engineering,
11 Sep. 2025
In a world where trust now comes at a premium, trust in your GenAI strategy starts with trusting the data that fuels it, and the most unfailing data in your business lives in your contracts.
—
Monish Darda,
Forbes.com,
8 Sep. 2025
Yesterday’s pangrams were gainful, unfailing and unflagging.
—
Julia Jacobs,
New York Times,
19 May 2025
What is most important, always, is an unfailing loyalty to Trump.
—
Constance Grady,
Vox,
25 Apr. 2025
See All Example Sentences for unfailing
Recent Examples of Synonyms for unfailing
Adjective
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The presence of another Golden Boot contender, the unerring Erling Haaland, means Norway is favored to progress against the Ivory Coast, although this is its first knockout match in 28 years.
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Ditto Hugh Jackman’s unerring performance — perhaps his finest dramatic work yet — as a savage, unfeeling thug and unrepentant murderer and thief.
Adjective
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Andrews, a lifelong resident of Red Hook Houses West, said the community has waited long enough for a reliable pool.
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No reliable figures are available for battlefield casualties in the war.
Adjective
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Mexico enters a must-win World Cup knockout against Ecuador at Azteca after a perfect group stage, three clean sheets and record-shattering crowds.
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Diop found separation behind all-world defender Virgil van Dijk and headed Chemsdine Talbi's perfect cross into the goal.
Adjective
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Because autonomous agents execute end-to-end business logic, deployment requires a flawless blend of operational domain expertise (business) and systemic oversight (IT).
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The fluffy brush made with vegan bristles is angled for flawless foundation application.
Adjective
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Look For What's Missing From The Data Strong marketing leaders know data is directional, not infallible.
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Instead, he was treated as an infallible saint.
Cite this Entry
“Unfailing.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unfailing. Accessed 3 Jul. 2026.
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