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
Relevance
Antonyms & Near Antonyms
2
as in impervious
impossible to get through or into
the castle's supposedly impregnable walls
Synonyms & Similar Words
Antonyms & Near Antonyms
Example Sentences
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Recent Examples of impregnable
As a result, homeowners and developers are reconsidering their approach to luxury living, emphasizing fire-resistant materials, impregnable landscaping, and cutting-edge smart-home technologies.
—
Abby Montanez, Robb Report, 6 July 2025
Japanese airpower destroyed supposedly impregnable British battle cruisers in the Pacific at the outset of World War II.
—Michael C. Horowitz, Foreign Affairs, 4 July 2025
Something technical would surely have been appropriate: Which programming language is most vulnerable, which most impregnable?
—Literary Hub, 1 July 2025
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
See All Example Sentences for impregnable
Abby Montanez, Robb Report, 6 July 2025
Japanese airpower destroyed supposedly impregnable British battle cruisers in the Pacific at the outset of World War II.
—Michael C. Horowitz, Foreign Affairs, 4 July 2025
Something technical would surely have been appropriate: Which programming language is most vulnerable, which most impregnable?
—Literary Hub, 1 July 2025
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
See All Example Sentences for impregnable
Recent Examples of Synonyms for impregnable
Adjective
-
Matheson’s testimonial in the faux documentary provides essential context for Salazar’s ultimately fruitless legal defense, explaining how looking through a camera lens can make someone feel invincible even in the face of certain peril.—
Alison Foreman,
IndieWire,
7 Nov. 2025
-
Green Bay Packers tight end Tucker Kraft was feeling invincible during the team’s victory over the Pittsburgh Steelers on Sunday night, improving to 5-1-1 on the season.—
Ryan Gaydos,
FOXNews.com,
27 Oct. 2025
Adjective
-
But there were strengths here, too, none more than England’s impervious Lazarus complex, that baffling inability to know when one is in a state of emergency.—
Megan Feringa,
New York Times,
26 Oct. 2025
-
The assessment by PlanIT Geo also found that only 29% of Pittsburg’s land is suitable for new tree planting, due to impervious surfaces.—
Hema Sivanandam,
Mercury News,
19 Oct. 2025
Adjective
-
Moreover, a culture where everyone tries to look invulnerable is harmful.—
Jason Ma,
Fortune,
26 Oct. 2025
-
Michelle exists on a level that is invulnerable to reproach, termination, or cancellation.—
Justin Chang,
New Yorker,
24 Oct. 2025
Adjective
-
This was a decisive turn away from Hasina’s India-first posture and toward closer alignment with Beijing.—
MUHIB RAHMAN,
Foreign Affairs,
12 Nov. 2025
-
Highly acidic foods like pickles and tomatoes will react with the can after an extended period of time, causing both taste and texture changes so pay particularly close attention to expiration dates on these items.—
Patricia Shannon,
Southern Living,
11 Nov. 2025
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
-
In extremely dense fog where visibility is near zero, the best course of action is to first turn on your hazard lights, then simply pull into a safe location such as a parking lot of a local business, and stop.—
CA Weather Bot,
Sacbee.com,
11 Nov. 2025
-
The chestnut—nutrient dense, hardy, quietly elegant—is a symbol with global resonance.—
Todd Plummer,
Vogue,
11 Nov. 2025
Adjective
-
This will benefit borrowers who will no longer be pushed into insurmountable debt to finance degrees that do not pay off.—
Suzanne Blake,
MSNBC Newsweek,
7 Nov. 2025
-
None of these are insurmountable obstacles, of course; with a large enough investment of resources, practically anything is possible.—
Big Think,
Big Think,
6 Nov. 2025
Adjective
-
And in the chaotic months since, clues about Tice’s fate have begun to seep through the walls of Syria’s once-impenetrable prisons and palaces.—
Rob Picheta,
CNN Money,
28 Oct. 2025
-
Yes, only two additional albums in 30 years since his 1995 debut, with a 14-year gap between the second and third, but an impenetrable recipe for everyone from Beyoncé to Kendrick Lamar.—
Kevin Powell,
MSNBC Newsweek,
16 Oct. 2025
Cite this Entry
“Impregnable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impregnable. Accessed 13 Nov. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share