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
-
Legacy print media is an endangered species, including the once-invincible Condé Nast empire, owner of Vogue and numerous other premier publications.—
Pamela McClintock,
HollywoodReporter,
11 May 2026
-
Tucker felt confident after the first run and was nearly invincible after the second.—
Martin Henderson,
Oc Register,
23 Apr. 2026
Adjective
-
In his view, a perspective from an external lens adds dimensionality to problems that may have become impervious or desensitized within a department.—
Daniel Fusch,
USA Today,
18 May 2026
-
The drug, daraxonrasib, works by targeting KRAS, a protein inside the cancer cells that was previously considered to be impervious.—
Cara Lynn Shultz,
PEOPLE,
14 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
-
Then, style it with jeans to hit the town for drinks with your closest friends.—
Caroline Hughes,
Travel + Leisure,
20 May 2026
-
Here, over a dozen or so hammocks hang from palm trees, swaying just over the water, close enough to dip your toes.—
Condé Nast,
Condé Nast Traveler,
19 May 2026
Adjective
-
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
-
Mountains as towering, imposing and seemingly unconquerable landscapes have been metaphorically linked to power and challenge.—
Jenny Hall,
CNN Money,
14 May 2025
Adjective
-
Plants form a dense tuft of stiff grass-like foliage.—
Kim Toscano,
Southern Living,
19 May 2026
-
Along the way, the grade grows dramatically, temperatures drop, and the views and climate zones shift from dense forest to alpine tundra.—
Travel + Leisure Editors,
Travel + Leisure,
19 May 2026
Adjective
-
Europe was up 3-1 after foursomes Friday morning last fall and had the same result on Saturday, lengthening their lead to an insurmountable advantage.—
Hugh Kellenberger,
New York Times,
13 May 2026
-
That hurdle could prove insurmountable.—
Christian Edwards,
CNN Money,
12 May 2026
Adjective
-
When faced with a unified, impenetrable front that raises the geopolitical costs of his disruption, Trump simply moves on.—
Jeffrey Sonnenfeld,
Time,
11 May 2026
-
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
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 21 May. 2026.
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