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
There was no impregnable IP, technology, or secret Coca-Cola ingredient.
—
Judah Taub, Fortune, 22 Oct. 2024
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
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
See All Example Sentences for impregnable
Judah Taub, Fortune, 22 Oct. 2024
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
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
See All Example Sentences for impregnable
Recent Examples of Synonyms for impregnable
Adjective
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The most impossible battle of her career, the most invincible dragon she’s ever picked a fight with, the most doomed leap she’s ever taken.—
Rob Sheffield,
Rolling Stone,
30 May 2025
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What makes extraterrestrials invincible in the movie Edge of Tomorrow or so superior in Arrival?—
Sadagopan S,
Forbes.com,
29 May 2025
Adjective
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Editor’s picks The world itself is lively, if not exactly dense.—
Christopher Cruz,
Rolling Stone,
6 June 2025
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In Puerto Rico earlier in the week, the cloud was dense and caused hazy skies, according to the National Weather Service in San Juan.—
Jeanine Santucci,
USA Today,
5 June 2025
Adjective
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However, pretending to be invulnerable doesn’t help anyone in the long run.—
Andrew Deutscher,
Forbes.com,
5 May 2025
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From the outside, Didion seemed to be to be inscrutable, glamorous, insanely gifted and invulnerable.—
Leigh Haber,
Los Angeles Times,
22 Apr. 2025
Adjective
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And where leadership believes their infrastructure is impenetrable, red teams often walk through the front door with nothing more than confidence and a cover story.—
Jochen Schwenk,
Forbes.com,
4 June 2025
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To say that this film is impenetrable is an understatement.—
Sophie Monks Kaufman,
IndieWire,
22 May 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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First, the team looked at the microbiomes of corals that are impervious to SCTLD to try and harvest probiotics from these disease-resistant species.—
Laura Baisas,
Popular Science,
5 June 2025
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These include the claim that children are virtually impervious to COVID, which has been refuted by the injury and death toll among children.—
Michael Hiltzik,
Los Angeles Times,
5 June 2025
Adjective
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Chelsea complete set: Blues stroll to win in Conference League despite defence changes From the outset, the Conference League presented Chelsea with no insurmountable hurdles.—
Phil Hay,
New York Times,
29 May 2025
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Some experts have argued an FDA restriction could create insurmountable barriers for those who no longer qualify but want to get vaccinated anyway to protect vulnerable family members.—
Youri Benadjaoud,
ABC News,
21 May 2025
Adjective
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The driveway for Bower Apartments becomes inundated with several feet of water, and is likely impassable.—
NC Weather Bot,
Charlotte Observer,
13 May 2025
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But the innkeepers reached her with news of impassable roads and mayhem.—
Barbara Kingsolver,
Southern Living,
25 Apr. 2025
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 14 Jun. 2025.
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