impregnable

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

But that doesn’t mean it’s impregnable, and consumers need to understand the potential dangers of handing their biometrics over to a company.

From The Wall Street Journal • Mar. 20, 2026

In theory that threatens Apple’s impregnable walled garden.

From The Wall Street Journal • Jan. 2, 2026

“It’s like hitting a bullet with a bullet,” someone says, crushing the naive notion of an impregnable “nuclear defense.”

From Los Angeles Times • Oct. 9, 2025

Germany forces occupied the Channel Islands from 1940 until 1945 and, under Adolf Hitler's orders, turned the the islands into an "impregnable fortress".

From BBC • Aug. 3, 2025

To reach it one had to pass through two impregnable walls, each with armed guards; and once inside, four massive gates had to be unlocked before one even reached the area where I was kept.

From "Long Walk to Freedom" by Nelson Mandela