1
as in unerring
not being or likely to be wrong
a teacher with an infallible memory for names
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in reliable
not likely to fail
an infallible cure for hiccups
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
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Recent Examples of infallible
Accuracy, Bias, and Human Oversight Matter Biometric systems aren’t infallible.
—
Alonzo Martinez, Forbes.com, 29 Aug. 2025
By contrast, a collaboration tool doesn’t need to be anywhere close to infallible to be useful.
—David Autor, The Atlantic, 24 Aug. 2025
Unfortunately, our eyes aren’t infallible, perfect organs that always focus the light down to a point on our retinas.
—Ethan Siegel, Big Think, 19 Aug. 2025
She's also developed an infallible fashion instinct that guides her when balancing relaxed basics with much more daring pieces.
—María Munsuri, Glamour, 9 Aug. 2025
See All Example Sentences for infallible
Alonzo Martinez, Forbes.com, 29 Aug. 2025
By contrast, a collaboration tool doesn’t need to be anywhere close to infallible to be useful.
—David Autor, The Atlantic, 24 Aug. 2025
Unfortunately, our eyes aren’t infallible, perfect organs that always focus the light down to a point on our retinas.
—Ethan Siegel, Big Think, 19 Aug. 2025
She's also developed an infallible fashion instinct that guides her when balancing relaxed basics with much more daring pieces.
—María Munsuri, Glamour, 9 Aug. 2025
See All Example Sentences for infallible
Recent Examples of Synonyms for infallible
Adjective
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James finds the wit in every line of Perkins’ script, playing his characters straight and with emotional depth while still showing an unerring instinct for where to place his verbal emphasis for maximum laughs as well as horror.—
Jim Hemphill,
IndieWire,
24 Oct. 2025
-
Cooper has unerring showbiz instincts.—
Owen Gleiberman,
Variety,
10 Oct. 2025
Adjective
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Clean energy is driving a state of 40 million people, offering more affordable energy and creating reliable jobs that will power the future.—
MSNBC Newsweek,
MSNBC Newsweek,
6 Nov. 2025
-
Becton is not reliable at this stage.—
Daniel Popper,
New York Times,
5 Nov. 2025
Adjective
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Includes gardening tips to grow perfect perennials and chiles for every palate, plus articles on delicious Ukrainian food dishes and Christmas family traditions, banana recipe contest winners and practical life advice.—
Alex Perry,
Cincinnati Enquirer,
7 Nov. 2025
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To this day, it's celebrated as one of the most iconic musical pairings ever captured on television — a shimmering handoff between generations and a snapshot of two powerhouse voices meeting in perfect harmony.—
Dave Quinn,
PEOPLE,
7 Nov. 2025
Adjective
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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
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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
Adjective
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What followed was a flawless and truly phenomenal run.—
Daniel Dylan Wray,
Pitchfork,
5 Nov. 2025
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Her makeup, by Georgie Eisdell, centered on the witchy red tone, with a flawless base and soft bronze cheek contour, a delicate smoky brown eye and black mascara.—
Anna Cafolla,
Vogue,
2 Nov. 2025
Adjective
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American leaders may be all-in on fossil fuels, but the rest of the world isn’t so sure.—
Nicholas Gordon,
Fortune,
3 Nov. 2025
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How to find your polling location Not sure where to go to vote?—
Chad Murphy,
Cincinnati Enquirer,
3 Nov. 2025
Cite this Entry
“Infallible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infallible. Accessed 8 Nov. 2025.
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