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
And never be afraid to change the sequence and tendencies of that infallible trio of pitches, using instinct and feel to amplify his physical talent.
—
Jack Harris, Los Angeles Times, 1 July 2025
Related article With no clear exit strategy in Iran, Israel risks another war with no end
The bomb shelters have not offered infallible protection.
—Oren Liebermann, CNN Money, 16 June 2025
Authoritarian leaders frequently operate from deep insecurity or an overwhelming need to appear infallible.
—Benjamin Laker, Forbes.com, 4 June 2025
An infallible dealmaker, resourceful problem-solver and filmmaker-friendly bon vivant, Ammar has played a pivotal, yet often behind-the-scenes role, in building cultural and cinematic bridges between Europe, the U.S. and the Arab world over the last 50 years.
—Nick Vivarelli, Variety, 14 May 2025
See All Example Sentences for infallible
Jack Harris, Los Angeles Times, 1 July 2025
Related article With no clear exit strategy in Iran, Israel risks another war with no end
The bomb shelters have not offered infallible protection.
—Oren Liebermann, CNN Money, 16 June 2025
Authoritarian leaders frequently operate from deep insecurity or an overwhelming need to appear infallible.
—Benjamin Laker, Forbes.com, 4 June 2025
An infallible dealmaker, resourceful problem-solver and filmmaker-friendly bon vivant, Ammar has played a pivotal, yet often behind-the-scenes role, in building cultural and cinematic bridges between Europe, the U.S. and the Arab world over the last 50 years.
—Nick Vivarelli, Variety, 14 May 2025
See All Example Sentences for infallible
Recent Examples of Synonyms for infallible
Adjective
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The numbers look sensational — his frightening physical profile and an unerring ability to thump a football immensely satisfying on the eye — but there are still burning questions.—
Thom Harris,
New York Times,
7 July 2025
-
Incidentally, a good lead dog has an almost unerring sense of direction.—
Ted Updike,
Outdoor Life,
22 May 2025
Adjective
-
One of his key issues remains securing clean, reliable water supplies for rural and tribal communities in need.—
Arlyssa D. Becenti,
AZCentral.com,
23 July 2025
-
By the time Osbourne returned to Milwaukee for a March 5, 1984, concert at the Arena, his concerts had a reliable opening act: protesters outside the venue, criticizing Osbourne and rockers like him for performing the devil's music.—
Chris Foran,
jsonline.com,
23 July 2025
Adjective
-
However, the symmetry in behavior between matter and antimatter is not perfect.—
William Barter,
Space.com,
1 Aug. 2025
-
Known for bold, vibrant patterns and quality craftsmanship, Vera Bradley’s bags are perfect for students, frequent flyers, office commuters, and everyday errand runners.—
Mariana Best,
Better Homes & Gardens,
1 Aug. 2025
Adjective
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Yesterday’s pangrams were gainful, unfailing and unflagging.—
Julia Jacobs,
New York Times,
19 May 2025
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She’s put off by his sweetness, his refusal to respond to her meanness and his unfailing encouragement, expressing pride in her tiniest recovery wins.—
David Rooney,
HollywoodReporter,
3 Sep. 2019
Adjective
-
The illusion was flawless, the synchronization perfect.—
Luciana Cemerka,
Forbes.com,
22 July 2025
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Any robotaxi service, Waymo included, needs to be virtually flawless in order to scale the service safely—yet with Tesla there’s no sign of that, according to Martinez.—
Christiaan Hetzner,
Fortune,
20 July 2025
Adjective
-
Not sure how to get around Austin for the MLS All-Star match?—
Marley Malenfant,
Austin American Statesman,
24 July 2025
-
Not sure why, but its order outlook is far worse than thought.—
Jim Cramer,
CNBC,
23 July 2025
Cite this Entry
“Infallible.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/infallible. Accessed 4 Aug. 2025.
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