1
as in dense
impossible to get through or into
the ancient temple was surrounded by vast stretches of impenetrable jungle
Synonyms & Similar Words
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Antonyms & Near Antonyms
2
as in mysterious
being beyond one's powers to know, understand, or explain
the mysteries of that religion are completely impenetrable to outsiders
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3
as in incomprehensible
impossible to understand
the textbook's language is completely impenetrable, at least to me
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4
as in tight
not allowing penetration (as by gas, liquid, or light)
the container of toxic waste has an impenetrable seal to prevent leaks
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Example Sentences
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Recent Examples of impenetrable
For the first time this year, Holmgren and free-agent signing Isaiah Hartenstein were available in the same game, giving the already-dominant Thunder defense an impenetrable back line.
—
Eric Koreen, The Athletic, 8 Feb. 2025
It’s apparently been rigged into an impenetrable torture device on wheels.
—Frank Scheck, The Hollywood Reporter, 18 Mar. 2025
The black-and-white cinematography is effectively murky, painting everything from circus sideshows to public baths with impenetrable inky corners.
—Joe Reid, Vulture, 28 Feb. 2025
The centre-back partners were the foundation of the red wall that proved impenetrable, stating their case to be considered the best pairing in Europe.
—Andy Jones, The Athletic, 25 Feb. 2025
See All Example Sentences for impenetrable
Eric Koreen, The Athletic, 8 Feb. 2025
It’s apparently been rigged into an impenetrable torture device on wheels.
—Frank Scheck, The Hollywood Reporter, 18 Mar. 2025
The black-and-white cinematography is effectively murky, painting everything from circus sideshows to public baths with impenetrable inky corners.
—Joe Reid, Vulture, 28 Feb. 2025
The centre-back partners were the foundation of the red wall that proved impenetrable, stating their case to be considered the best pairing in Europe.
—Andy Jones, The Athletic, 25 Feb. 2025
See All Example Sentences for impenetrable
Recent Examples of Synonyms for impenetrable
Adjective
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Select plants with dense habits and thick cover to outcompete weeds that germinate in these border plantings.—
Kim Toscano,
Southern Living,
5 Apr. 2025
-
Behind every large language model or real-time inference engine lies a dense web of data centers, chips, storage, and cooling infrastructure.—
Jemma Green,
Forbes.com,
4 Apr. 2025
Adjective
-
The first season saw Charles eventually wrap the case and leave the nursing home to return to his life, but ended with the PI calling him again to seek his help on a mysterious new case.—
Lauren Huff,
EW.com,
28 Mar. 2025
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Despite Shauna trying to blame her for all the mysterious things happening to her in season 3, Melissa says that Shauna is the problem, the real anti-hero, so to speak.—
Stacy Lambe,
People.com,
28 Mar. 2025
Adjective
-
Even though arrests have been made, first-degree murder charges have been filed and the victim laid to rest, this case remains an incomprehensible display of human malice.—
Matt Lavietes,
NBC News,
8 Mar. 2025
-
Upon agreement, their dialogue shifts to a series of sounds incomprehensible to humans.—
Dr. Diane Hamilton,
Forbes,
25 Feb. 2025
Adjective
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This wood is chosen for its tight grain and natural flavor compounds, such as lignin and tannins.—
Emily Price,
Forbes.com,
4 Apr. 2025
-
The following are the three main types to choose from: Small cat trees are affordable and ideal for tight living quarters.—
BestReviews,
Mercury News,
4 Apr. 2025
Adjective
-
But these concepts are not, on their own, impervious to challenge.—
Michael Peregrine,
Chicago Tribune,
14 Mar. 2025
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Remember, Nathan isn’t strong, just impervious to pain.—
Peter Debruge,
Variety,
8 Mar. 2025
Adjective
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And this looks to have that signature Souls flavor both in terms of combat and cryptic storytelling.—
Erik Kain,
Forbes.com,
2 Apr. 2025
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The note features a cryptic math puzzle that, when solved correctly using a unique personal identifier, reveals the phone number of the person who found the wallet.—
Josh Hammer,
MSNBC Newsweek,
1 Apr. 2025
Adjective
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From our review: Khan’s lack of screen presence, toothless mixed martial arts sequences and unintelligible editing further knock the film down.—
The New York Times,
New York Times,
4 Apr. 2025
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The rest of the freestyle was unintelligible, and it was not shot well, either.—
Armon Sadler,
VIBE.com,
25 Mar. 2025
Adjective
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Twangy bass lines thick enough to saw down a redwood tree are shredded with shivers of electric guitar to create a blues sound that cuts a hole straight through the decades.—
David Ehrlich,
IndieWire,
10 Apr. 2025
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This beautiful Easter garland, on sale for $79.99 at Wayfair, is opulent and thick with twigs and pastel eggs that run throughout.—
Nora Colomer,
FOXNews.com,
10 Apr. 2025
Cite this Entry
“Impenetrable.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/impenetrable. Accessed 13 Apr. 2025.
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