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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An invincible with Bayer Leverkusen last season, the Netherlands international Frimpong was announced as a New Balance athlete last month.—
Art de Roché,
The Athletic,
7 Feb. 2025
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The Chiefs, far from looking invincible, have squeaked out win after win this season, and no team has ever won three straight Super Bowls.—
Louisa Thomas,
The New Yorker,
26 Jan. 2025
Adjective
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This petite pick packs a springtime punch with its dense collection of yellow, red, and purple tulips.—
Miles Walls,
Better Homes & Gardens,
17 Feb. 2025
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On the other hand, Halsey’s smart, dense, often weird music has lately been overshadowed by the drama that continually dogs her.—
Stephen Deusner,
SPIN,
17 Feb. 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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Artificial intelligence is even peering through the most impenetrable of artifacts: ancient, charred scrolls that are too delicate to be unfurled.—
Ashley Strickland,
CNN,
8 Feb. 2025
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What may sound conceptually impenetrable again proves to function not only well, but with humanity, with the release of Horsegiirl’s debut EP, v.i.p. – very important pony.—
Katie Bain,
Billboard,
24 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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If there’s a black cloud hovering over Spectrum Center, Charles Lee certainly is impervious to it.—
Roderick Boone,
Charlotte Observer,
2 Feb. 2025
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Over its multi-year run as part of NBC’s Dateline franchise, To Catch a Predator wasn’t impervious to criticism or lawsuits, but it was surely insulated.—
Daniel Fienberg,
The Hollywood Reporter,
26 Jan. 2025
Adjective
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Hope, in its essence, is the unwavering belief that better days lie ahead, even in the face of seemingly insurmountable challenges.—
Contributed Content,
Twin Cities,
7 Feb. 2025
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And even though Kosmic's trick is functionally impossible to pull off with human reflexes on real hardware, the method shows how the game's seemingly insurmountable kill screen actually can be overcome without modifying the code on an official Donkey Kong arcade board.—
Jonathan M. Gitlin,
Ars Technica,
7 Feb. 2025
Adjective
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Many partially destroyed streets and bridges that were covered with mud months ago are still impassable.—
Eduardo Medina,
New York Times,
24 Jan. 2025
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Most roads are impassable; most power and sewer infrastructure is gone.—
Michael Gfoeller And David H. Rundell,
Newsweek,
15 Jan. 2025
Thesaurus Entries Near impregnable
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 21 Feb. 2025.
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