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
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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
-
Cooper has unerring showbiz instincts.—
Owen Gleiberman,
Variety,
10 Oct. 2025
-
The tale she’s lived to tell emerges, for all its crotchety complaints, from a place of unerring loyalty.—
Mark Leibovich,
The Atlantic,
8 Oct. 2025
Adjective
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But one reliable occupant, Spirit Halloween, has called it home for years.—
Victoria Moorwood,
Cincinnati Enquirer,
23 Oct. 2025
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Even with a tracker, a traditional collar remains a reliable option.—
Cody Godwin,
USA Today,
22 Oct. 2025
Adjective
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In perhaps a perfect encapsulation of the Rangers’ current woes, Mika Zibanejad put himself in position to score an overtime winner and prepared to shoot, only for the puck to slide off his stick.—
Peter Baugh,
New York Times,
17 Oct. 2025
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Beyond Blues introduces non-indigo dye options and versatile customization possibilities, while Airsoft features a fresh palette of luminous mid and light indigo tones, complemented by soft greys and blacks—perfect for spring-summer moods and relaxed silhouettes.—
Angela Velasquez,
Sourcing Journal,
17 Oct. 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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In what was almost a flawless tournament, Delgado was the calming, anchoring presence at the heart of it all.—
Thom Harris,
New York Times,
23 Oct. 2025
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Overall, the Gemini demo was flawless.—
Steve Kovach,
CNBC,
22 Oct. 2025
Adjective
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Women often should be more sure of themselves and happy to be out there.—
Georg Szalai,
HollywoodReporter,
20 Oct. 2025
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Its bright white background contrasts with the blue and green design for an eye-catching look that’s sure to impress at every event.—
Caley Sturgill,
Southern Living,
20 Oct. 2025
Cite this Entry
“Infallible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infallible. Accessed 24 Oct. 2025.
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