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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Antonyms & Near Antonyms
2
as in impervious
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
France believed its Maginot Line of fortresses was impregnable – until the Germans simply went around it.
—
New Atlas, 19 Feb. 2026
By now, Bondi’s playbook at these hearings is both familiar and seemingly impregnable.
—Ruth Marcus, New Yorker, 12 Feb. 2026
But their quarterback issues could make those defenses look impregnable.
—Kevin Cusick, Twin Cities, 30 Nov. 2025
OpenAI wasn’t a fortress, wasn’t impregnable.
—Jim Cramer, CNBC, 16 Nov. 2025
See All Example Sentences for impregnable
New Atlas, 19 Feb. 2026
By now, Bondi’s playbook at these hearings is both familiar and seemingly impregnable.
—Ruth Marcus, New Yorker, 12 Feb. 2026
But their quarterback issues could make those defenses look impregnable.
—Kevin Cusick, Twin Cities, 30 Nov. 2025
OpenAI wasn’t a fortress, wasn’t impregnable.
—Jim Cramer, CNBC, 16 Nov. 2025
See All Example Sentences for impregnable
Recent Examples of Synonyms for impregnable
Adjective
-
Tucker felt confident after the first run and was nearly invincible after the second.—
Martin Henderson,
Oc Register,
23 Apr. 2026
-
To recapture the feeling — that vital, invincible energy — of being in your prime?—
Dieter Kurtenbach,
Mercury News,
16 Apr. 2026
Adjective
-
The Calabria some outside Italy do already know is the Costa degli Dei, or Coast of the Gods, a 34-mile stretch of Tyrrhenian shore from Pizzo to Nicotera (think of it as the knuckle on the Calabrian toe), where long white beaches alternate with impervious cliffs and rocky coves.—
Lee Marshall,
Condé Nast Traveler,
9 May 2026
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An expert home baker who taught me how to make perfectly short pie crust, Karen was impervious to the cold and would show up at our house on 30-degree days wearing shorts.—
Jennifer Acker,
PEOPLE,
8 May 2026
Adjective
-
He-Man has superhuman speed and strength and is invulnerable to most damage.—
Sanat Pai RaikarAll,
Encyclopedia Britannica,
4 May 2026
-
Not even the most powerful American companies are invulnerable to cargo theft.—
Will McCurdy,
PC Magazine,
2 May 2026
Adjective
-
Sources close to Canvot, speaking anonymously to protect relationships, have told The Athletic that the message from Glasner after that error was simple.—
Matt Woosnam,
New York Times,
13 May 2026
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López was one of the fiercest critics of then-Mayor Fúnez, a supporter of the mine and close ally of Honduras’ former president, Xiomara Castro.—
Marlon González,
Los Angeles Times,
13 May 2026
Adjective
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The seemingly unconquerable fig butterwort (Ficaria verna) invades lowland valleys where seasonal floods carry little broken off bits downstream to sprout anywhere and everywhere.—
Paul Cappiello,
The Courier-Journal,
15 Aug. 2025
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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
Adjective
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In cases of near-zero visibility due to dense fog, initiate your hazard lights and locate a secure spot, such as a nearby business parking area, to pull over and come to a halt.—
NC Weather Bot,
Charlotte Observer,
12 May 2026
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However, what really gives these native plants staying power is their easy-care vibe and ability to form a dense, groundcovering mat of foliage and blooms in just a year or two.—
Lauren Landers,
The Spruce,
12 May 2026
Adjective
-
None of these issues seems insurmountable, Jim said.—
Natasha Abellard,
CNBC,
6 May 2026
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The Giants aren’t in some insurmountable hole.—
Justice delos Santos,
Mercury News,
1 May 2026
Adjective
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Elite defenses have increasingly tested and thwarted Denver’s once-impenetrable two-man game in the playoff moments that often steer front offices in their decision-making.—
Bennett Durando,
Denver Post,
1 May 2026
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The racing form, ostensibly to inform bettors, looks like a spreadsheet strewn with figures, arcana and formatting designed specifically to be impenetrable.—
Neil Greenberg,
New York Times,
1 May 2026
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 13 May. 2026.
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