1
as in invincible
incapable of being defeated, overcome, or subdued
an impregnable fortress that had foiled one invader after another over the centuries
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in dense
impossible to get through or into
the castle's supposedly impregnable walls
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Antonyms & Near Antonyms
Example Sentences
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Recent Examples of impregnable
Superstar Harmanpreet Kaur's unbelievable 171 not out that destroyed an impregnable Australia in a remarkable semi-final upset was seen as a turning point.
—
Tristan Lavalette, Forbes, 15 Oct. 2024
But their defenses are not impregnable.
—David Zipper, Vox, 7 Dec. 2018
From Sandro Tonali to Dan Burn and Dubravka, this current side have been borderline impregnable over the past month.
—Chris Waugh, The Athletic, 16 Jan. 2025
For more than half a century, the Assad dynasty appeared to have an impregnable hold over Syria.
—Natasha Hall, Foreign Affairs, 9 Dec. 2024
See All Example Sentences for impregnable
Tristan Lavalette, Forbes, 15 Oct. 2024
But their defenses are not impregnable.
—David Zipper, Vox, 7 Dec. 2018
From Sandro Tonali to Dan Burn and Dubravka, this current side have been borderline impregnable over the past month.
—Chris Waugh, The Athletic, 16 Jan. 2025
For more than half a century, the Assad dynasty appeared to have an impregnable hold over Syria.
—Natasha Hall, Foreign Affairs, 9 Dec. 2024
See All Example Sentences for impregnable
Recent Examples of Synonyms for impregnable
Adjective
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Even though these spaces feel invincible in the moment, they’re so easily taken away or criminalized.—
Kieran Press-Reynolds,
Pitchfork,
25 June 2025
-
Nonetheless, many political observers deemed Sunday’s low turnout an embarrassing setback for a party that had seemed near invincible in its extraordinary march to power since its emergence less than a decade ago.—
Patrick J. McDonnell,
Los Angeles Times,
2 June 2025
Adjective
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Where the Earth has a dense atmosphere, abundant water and life, Mars is a desiccated, lifeless world where even the prospects of finding fossil bacteria are a long shot.—
New Atlas,
New Atlas,
12 July 2025
-
On Friday at 6:54 a.m. a dense fog advisory was issued by the NWS Blacksburg VA in effect until 9 a.m.—
NC Weather Bot,
Charlotte Observer,
11 July 2025
Adjective
-
Lila, so often implacable and invulnerable, is scared and uncertain.—
Rafaela Bassili,
Vulture,
30 Sep. 2024
-
But his opposition to regulation was invulnerable to evidence.—
Paul Romer,
Foreign Affairs,
11 Feb. 2020
Adjective
-
When selecting a provider, organizations should remember to look for one that offers robust data protection offerings that ensure the storage sets are impenetrable.—
Dave Friend,
Forbes.com,
27 June 2025
-
Built inside a mountain some 300 feet underground and reinforced by layers of concrete, the plant, which is the most likely target of a potential American strike, is impenetrable by any bomb except the GBU-57 Massive Ordnance Penetrator (MOP).—
Adeola Adeosun,
MSNBC Newsweek,
21 June 2025
Adjective
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Mountains as towering, imposing and seemingly unconquerable landscapes have been metaphorically linked to power and challenge.—
Jenny Hall,
CNN Money,
14 May 2025
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The Latin word Invictus means unconquerable or undefeated.—
Lissete Lanuza Sáenz,
StyleCaster,
18 Apr. 2025
Adjective
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The code also would set permeability requirements and expand the definition of artificial turf to include turf that is not 100% impervious.—
Pili Saravia,
Austin American Statesman,
2 July 2025
-
The data further reveal that Latino neighborhoods often have more impervious surfaces and older housing stock lacking modern cooling systems, both of which compound the risks of heat exposure.—
Marcos Magaña,
Los Angeles Times,
24 June 2025
Adjective
-
But without Jayson Tatum healthy, the odds [against them] winning a championship are insurmountable.—
Peter A. Berry,
Rolling Stone,
29 June 2025
-
In truth, this decision is a small spark of good news that would shine much more brightly if manatees weren’t facing threats that seem almost insurmountable over the long run.—
Orlando Sentinel Editorial Board,
The Orlando Sentinel,
26 June 2025
Adjective
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By this point, the road behind him was impassable, too.—
Rachel Monroe,
New Yorker,
11 July 2025
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By that point, according to survivor accounts, many evacuation routes had been impassable for hours.—
Zeynep Tufekci,
Mercury News,
10 July 2025
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 19 Jul. 2025.
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