as in unquestionable
not capable of being challenged or proved wrong
the contention that there are certain unchallengeable rules governing proper grammar
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Recent Examples of unchallengeable
Regular board and executive succession planning, with a balance of independent directors, can ensure the right questions are asked and no single person becomes unchallengeable.
—
James Henderson, Forbes, 4 Dec. 2024
Unlike Biden, Trump’s intraparty position is nearly unchallengeable.
—The Editors, National Review, 3 July 2024
No longer having to play cosmetic chemist is an unchallengeable win.
—Essence, 23 Oct. 2023
This was rooted in a calculation that America’s greatest source of strength was global perceptions of the country as unchallengeable.
—Max Fisher, New York Times, 18 Mar. 2023
In the heady days after the Cold War, the order appeared both unchallenged and unchallengeable.
—Ivo Daalder, Foreign Affairs, 21 June 2022
Alternatively, maybe journalists and, later, historians, felt that to focus on the unsolved mystery of the break-in would somehow diminish the unchallengeable fact of Nixon’s guilt in the cover-up and various other scandals unearthed in the Watergate investigations and after.
—Timothy Noah, The New Republic, 17 June 2022
However, authoritarian leaders like Vladimir Putin and Mohammed bin Salman are both extremely personally wealthy in ways that are harder to calculate and also have unchallengeable access to the vast wealth of their nations.
—Sean O'Kane, The Verge, 7 Jan. 2021
James Henderson, Forbes, 4 Dec. 2024
Unlike Biden, Trump’s intraparty position is nearly unchallengeable.
—The Editors, National Review, 3 July 2024
No longer having to play cosmetic chemist is an unchallengeable win.
—Essence, 23 Oct. 2023
This was rooted in a calculation that America’s greatest source of strength was global perceptions of the country as unchallengeable.
—Max Fisher, New York Times, 18 Mar. 2023
In the heady days after the Cold War, the order appeared both unchallenged and unchallengeable.
—Ivo Daalder, Foreign Affairs, 21 June 2022
Alternatively, maybe journalists and, later, historians, felt that to focus on the unsolved mystery of the break-in would somehow diminish the unchallengeable fact of Nixon’s guilt in the cover-up and various other scandals unearthed in the Watergate investigations and after.
—Timothy Noah, The New Republic, 17 June 2022
However, authoritarian leaders like Vladimir Putin and Mohammed bin Salman are both extremely personally wealthy in ways that are harder to calculate and also have unchallengeable access to the vast wealth of their nations.
—Sean O'Kane, The Verge, 7 Jan. 2021
Recent Examples of Synonyms for unchallengeable
Adjective
-
What is unquestionable is that like millions of other anguished parents, Rob and Michele struggled with how to help their troubled son.—
Cara Lynn Shultz,
PEOPLE,
20 Dec. 2025
-
That tug-and-pull conflict between them exemplifies how adults invalidate children’s perspectives, assuming that their age has granted them unquestionable certitude.—
Carlos Aguilar,
Variety,
11 Dec. 2025
Adjective
-
Now, technology has placed this once seemingly irrefutable source of truth under threat.—
Brady Africk,
Time,
27 Oct. 2025
-
An 0-3 record writes its own irrefutable story, and a critical late Tagovailoa interception was its punctuation.—
Miami Herald,
Miami Herald,
19 Sep. 2025
Adjective
-
But that this was a transformative moment — for good or bad — seemed indisputable.—
Mery Mogollon,
Los Angeles Times,
3 Jan. 2026
-
That being said, the numbers are indisputable.—
Jonah Flicker,
Robb Report,
30 Dec. 2025
Adjective
-
That is to say, there is no one pure ur-movie, unblemished and incontestable.—
Anthony Lane,
New Yorker,
22 Sep. 2025
-
Despite the discouraging tendency these days to see everything through a political prism, the science itself is incontestable and apolitical: Climate change is caused by human activity, primarily the use fossil fuels, like coal, oil and gas.—
Caitlin Looby,
jsonline.com,
24 July 2025
Adjective
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Though home blood pressure monitors are effective, a healthcare provider can provide more accurate and conclusive results.—
Mark Gurarie,
Verywell Health,
6 Nov. 2025
-
Despite numerous conclusive assessments that the Saudi regime planned and perpetrated Khashoggi’s murder, the high-level officials who ordered his execution have gone unpunished, six years on.—
Scott Griffen,
MSNBC Newsweek,
4 Nov. 2025
Adjective
-
Above all, the film captures the ravages and awe of time, on the actors’ faces and bodies, or on the sun suddenly peaking out above a dawn Mediterranean sea horizon, the real world, manifest in a scene of incontrovertible wonder.—
John Hopewell,
Variety,
24 Oct. 2025
-
The Senate’s authority to confirm or deny the president’s nominees is incontrovertible.—
James B. Speta,
Twin Cities,
16 Sep. 2025
Adjective
-
At its core, the project circles the same unanswerable question that has hovered over the Beatles for six decades: how did four twenty-somethings from northern England end up reshaping the world through their music?—
Jordan Runtagh,
PEOPLE,
27 Nov. 2025
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An unanswerable question is how the conservative Justices were influenced by the continual swirl of cases and suits.—
Amy Davidson Sorkin,
New Yorker,
17 Nov. 2025
Adjective
-
But while the trajectory is indubitable, the ascent is far from smooth, as Ghana’s recent experiences neatly encapsulate.—
Charlie Campbell,
Time,
30 Oct. 2025
-
Lush greenery in wicker creates a cottage feel Wicker retaining walls add indubitable charm.—
Katherine McLaughlin,
Architectural Digest,
18 Apr. 2025
Cite this Entry
“Unchallengeable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/unchallengeable. Accessed 11 Jan. 2026.
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