impenetrable

adjective im·pen·e·tra·ble \ (ˌ)im-ˈpe-nə-trə-bəl \

|Updated on: 14 Jun 2018

Examples: impenetrable in a Sentence

Definition of impenetrable

1 a : incapable of being penetrated or pierced

b : inaccessible to knowledge, reason, or sympathy : impervious

2 : incapable of being comprehended : inscrutable

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impenetrably

play \(ˌ)im-ˈpe-nə-trə-blē\ adverb

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Examples of impenetrable in a Sentence

The fort's defenses were thought to be impenetrable.
the ancient temple was surrounded by vast stretches of impenetrable jungle

Recent Examples of impenetrable from the Web

This is where suncare pills come in: If antioxidant-rich blueberries help strengthen your body’s free radical defense, sun pills turn your skin into an impenetrable free radical fortress, nuking them on sight.

— brennan kilbane, GQ, "This Magical New Pill Reduces Long-Term Sun Damage," 7 June 2018
Pruitt gave that impenetrable response to a question about the story.

— gregory krieg, CNN, "Scott Pruitt did what now?," 7 June 2018
By co-opting the Italian family structure, the Ndrangheta created an organization that remains nearly impenetrable to law enforcement authorities worldwide.

— jackson holahan, The Christian Science Monitor, "'The Good Mothers' profiles the female prosecutor who took on Italy's mafia," 6 June 2018
The layer of cheese shouldn’t be thick and impenetrable, and the sauce should be peeking through the cheese.

— alex delany, Bon Appetit, "What’s the Best New York Slice? I Ate at 30 Pizza Joints to Find Out," 6 June 2018
And for all his unusual accessibility to the press and through them the public, a part of him remains impenetrable.

— elizabeth drew, The New Republic, "The John McCain I Know," 1 June 2018
The snakes are so difficult to detect, and marshes so impenetrable, that even determining their numbers remains difficult, said Kristin Sommers, the state's exotic species coordinator.

— jenny staletovich, miamiherald, "Calling all hunters: Everglades National Park wants you to kill its Burmese pythons," 31 May 2018
The superhero series Luke Cage, starring Mike Colter as a Marvel hero with impenetrable skin, debuts its second season on June 22.

— sophie gilbert, The Atlantic, "18 New Shows to Watch This Summer," 29 May 2018
Until now, North Korea’s nuclear and missile programs have been shrouded in nearly impenetrable secrecy, explaining U.S. analysts’ shocked reactions to Pyongyang’s leaps in long-range missile technology over the past two years.

— joby warrick, Washington Post, "Summit collapse foils chance to press North Korea on suspicious sites," 25 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'impenetrable.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.