1
as in invincible
incapable of being defeated, overcome, or subdued
an impregnable fortress that had foiled one invader after another over the centuries
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2
as in dense
impossible to get through or into
the castle's supposedly impregnable walls
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Example Sentences
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Recent Examples of impregnable
His party lost a majority of seats in Uttar Pradesh, India’s largest state, once considered an impregnable fortress for his brand of Hindu nationalism and identity politics.
—
Pratap Bhanu Mehta, Foreign Affairs, 14 June 2024
Once when told that a certain French fortress was impregnable and once when told that his mother-in-law had died.
—Andrew Stuttaford, National Review, 25 Mar. 2024
Inflation is a currency phenomenon, which means that Summers et al are floating non sequiturs rooted in the absurd notion that the U.S. economy is an impregnable island of economic activity, as opposed to an interconnected part of a global whole.
—John Tamny, Forbes, 25 Feb. 2024
Some Wall Street analysts agree with Belloni and his tweet that the fact Netflix’s competitors license content to it is a sign of its impregnable position atop the streaming heap.
—Paolo Confino, Fortune, 7 Jan. 2024
See all Example Sentences for impregnable 
Pratap Bhanu Mehta, Foreign Affairs, 14 June 2024
Once when told that a certain French fortress was impregnable and once when told that his mother-in-law had died.
—Andrew Stuttaford, National Review, 25 Mar. 2024
Inflation is a currency phenomenon, which means that Summers et al are floating non sequiturs rooted in the absurd notion that the U.S. economy is an impregnable island of economic activity, as opposed to an interconnected part of a global whole.
—John Tamny, Forbes, 25 Feb. 2024
Some Wall Street analysts agree with Belloni and his tweet that the fact Netflix’s competitors license content to it is a sign of its impregnable position atop the streaming heap.
—Paolo Confino, Fortune, 7 Jan. 2024
See all Example Sentences for impregnable
Recent Examples of Synonyms for impregnable
Adjective
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The outcome boils down to a key determination: Is Patrick Mahomes inevitable, or has Josh Allen become invincible?—
Jeff Howe,
The Athletic,
24 Jan. 2025
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It was born in 1949 not to strengthen the U.S. from external attack but to weaken our invincible self-defense by squandering money, weapons and manpower on Europeans.—
Armstrong Williams,
Orange County Register,
13 Jan. 2025
Adjective
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The combination of environmental regulations protecting chaparral, combined with the dense residential areas near it, mean that prescribed fire is very infrequently used in Southern California.—
Ella Nilsen,
CNN,
24 Jan. 2025
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The village is small and dense, lined with crumbling structures and the exploded remains of cars.—
Matt Donnelly,
Variety,
24 Jan. 2025
Adjective
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Any pardons Biden issued should be virtually invulnerable to a court challenge.—
Ian Millhiser,
Vox,
20 Jan. 2025
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The bills are strong but not invulnerable; fractures often occur during these interactions, leaving pieces lodged in unfortunate victims.—
Melissa Cristina Marquez,
Forbes,
9 Jan. 2025
Adjective
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Studying Trump’s image-making is, for better or worse, one of the few windows into the worldview of an otherwise impenetrable figure.—
Leah Dolan,
CNN,
18 Jan. 2025
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Special run-flat tires, a new thing at the time, finish off the impenetrable visage.—
Josh Max,
Forbes,
17 Jan. 2025
Adjective
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Even the most vulnerable patrons of an unforgiving desert can confront tribulation with the command of unconquerable spirits.—
Yahya Salem,
CNN,
6 Aug. 2024
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By contrast, the Tibetan language, which has nothing in common with Mandarin, remains doggedly unconquerable; unlike other aspects of Tibetan life, it has not been tamed, co-opted, or Sinicized.—
Tenzin Dorjee,
Foreign Affairs,
28 Nov. 2023
Adjective
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The film is the studio’s best hope at fielding a billion-dollar blockbuster in 2025, but even the Man of Steel isn’t impervious to box office Kryptonite.—
Rebecca Rubin,
Variety,
17 Jan. 2025
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Anti-immigration narratives are impervious to facts.—
Dan Gooding,
Newsweek,
8 Jan. 2025
Adjective
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For outsiders, Oymyakon’s unyielding cold might seem insurmountable.—
Scott Travers,
Forbes,
19 Jan. 2025
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Nothing is insurmountable when many hands can lighten loads.—
Mike Fleming Jr,
Deadline,
14 Jan. 2025
Adjective
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These conditions could lead to treacherous travel, with roads becoming impassable in hilly or mountainous areas.—
Hannah Parry,
Newsweek,
7 Jan. 2025
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Thicker layers of ice can cause power outages and make roads impassable.—
Mansee Khurana,
NPR,
4 Jan. 2025
Thesaurus Entries Near impregnable
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 30 Jan. 2025.
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