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
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Tucker felt confident after the first run and was nearly invincible after the second.—
Martin Henderson,
Oc Register,
23 Apr. 2026
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To recapture the feeling — that vital, invincible energy — of being in your prime?—
Dieter Kurtenbach,
Mercury News,
16 Apr. 2026
Adjective
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In the century-plus since its grounds were largely closed to the public, dozens of events are evidence that even the White House complex is not impervious to intrusion.—
Meg Kinnard,
Chicago Tribune,
26 Apr. 2026
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There are precious few roads, and nothing is impervious to the whims of weather.—
Tribune News Service,
Baltimore Sun,
16 Mar. 2026
Adjective
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Still, like any good soldier, Meredith wasn’t going to be discouraged by a bunch of invulnerable avian tanks.—
Tom Hawking,
Popular Science,
25 Feb. 2026
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That is partly because no other power had enjoyed America’s unique circumstances—largely invulnerable to foreign invasion, because of its strength and its distance from the other great powers, and thus able to deploy force thousands of miles from home without leaving itself at risk.—
Robert Kagan,
The Atlantic,
18 Jan. 2026
Adjective
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Because the Celtics, provided they close-out the 76ers, have the kind of shooters the Hawks don’t.—
Kristian Winfield,
New York Daily News,
29 Apr. 2026
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Qatar could deepen its already close defense ties to Turkey, and China, which is close to Iran, could play a greater diplomatic role.—
Sudarsan Raghavan,
New Yorker,
28 Apr. 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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Eating avocado or almond butter on toast offers several benefits, as both are nutrient-dense, with almond butter slightly healthier than avocado per serving.—
Angelica Bottaro,
Verywell Health,
28 Apr. 2026
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The most lasting albums were built on the tradition of musique concrète, leading to dense, mesmerizing collages.—
Joshua Minsoo Kim,
Pitchfork,
28 Apr. 2026
Adjective
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For a team that managed only three runs in the entire series against the Yankees and that hasn’t overcome more than a one-run deficit in a win, the early 4-0 hole felt insurmountable.—
Mac Cerullo,
Boston Herald,
25 Apr. 2026
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The major problems in the world at the moment feel a little insurmountable?—
Alex Ritman,
Variety,
24 Apr. 2026
Adjective
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Nate, on the other hand, just needed to show up in something simple but elevated (while honoring Jacob Elordi’s impenetrable Bottega Veneta contract), so he’s styled in a custom Bottega Veneta tuxedo.—
Zoe Papelis,
Vulture,
27 Apr. 2026
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But the war has also shown that missile defenses are not impenetrable, with at least seven US service members killed by hostile action.—
Stephen Clark,
ArsTechnica,
25 Apr. 2026
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 2 May. 2026.
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