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
Holding the two halves together builds something that neither half could make alone, and treating either as infallible turns them into engines for manufacturing enemies and alienating friends.
—
Robert T.f. Downes, Hartford Courant, 6 Jan. 2026
Experts are not infallible, science evolves, new facts emerge.
—Bill Goodykoontz, AZCentral.com, 6 Jan. 2026
From the mysterious East, now comes Carrnac the Magnificent with his infallible predictions for the New Year, 2026.
—Howie Carr, Boston Herald, 31 Dec. 2025
Israeli leaders are hardly infallible in their judgments, including about developments in their own region.
—Andrew P. Miller, Foreign Affairs, 5 Dec. 2025
See All Example Sentences for infallible
Robert T.f. Downes, Hartford Courant, 6 Jan. 2026
Experts are not infallible, science evolves, new facts emerge.
—Bill Goodykoontz, AZCentral.com, 6 Jan. 2026
From the mysterious East, now comes Carrnac the Magnificent with his infallible predictions for the New Year, 2026.
—Howie Carr, Boston Herald, 31 Dec. 2025
Israeli leaders are hardly infallible in their judgments, including about developments in their own region.
—Andrew P. Miller, Foreign Affairs, 5 Dec. 2025
See All Example Sentences for infallible
Recent Examples of Synonyms for infallible
Adjective
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So the head golf pro there needs to not only know the game and its rules, but also must have the unerring instincts of an excellent cruise director combined with an air traffic controller.—
Scott Fowler,
Charlotte Observer,
6 Feb. 2026
-
Aaronson’s finishes were unerring and clinical.—
Beren Cross,
New York Times,
8 Jan. 2026
Adjective
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The attack was likely meant to demonstrate how the group, a once reliable and powerful proxy of the Islamic Republic, still has the capability and the will to strike on behalf of Tehran.—
Matthew Chance,
CNN Money,
3 Mar. 2026
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Again, the cast award is not a reliable best picture precursor.—
Glenn Whipp,
Los Angeles Times,
2 Mar. 2026
Adjective
-
There's a perfect balance of slightly sweet and salty.—
Emily Elias,
Bon Appetit Magazine,
4 Mar. 2026
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The asparagus, gouda cheese and tarragon strike a perfect flavor balance.—
Mary Shannon Wells,
Southern Living,
4 Mar. 2026
Adjective
-
The young monarch is thought to have spent an hour alone before taking up her duties with the unfailing stoicism that would come to define her historic reign.—
Hope Coke,
Vanity Fair,
7 Feb. 2026
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And her unfailing ability to give the perfect little sardonic wink and nod extends beyond her social media content and even beyond her impeccable performances in projects like Netflix's Too Much.—
Meg Walters,
InStyle,
4 Jan. 2026
Adjective
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Frustration and impatience in the pursuit of flawless execution put everyone in his crosshairs.—
Edgar Thompson,
The Orlando Sentinel,
3 Mar. 2026
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On the resulting truncated power play, Gauthier’s buzzer-beating bid for a hat trick didn’t go, sending the affair to a shootout, where the Ducks have been flawless.—
Andrew Knoll,
Oc Register,
2 Mar. 2026
Adjective
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That brought Aubry to tears — not an uncommon sight … less common than Rizo, sure, but still, not uncommon.—
Dalton Ross,
Entertainment Weekly,
5 Mar. 2026
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And straddling it were the Mexicans and the gringos, like two children, eyes shut, their backs to each other, while the Apaches scuttled back and forth between their legs, not sure where to go with strangers bubbling up everywhere, filling their lands.—
Carolina A. Miranda,
The Atlantic,
5 Mar. 2026
Cite this Entry
“Infallible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infallible. Accessed 9 Mar. 2026.
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