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.
Alcatraz island - nicknamed "the Rock" because it was regarded as an impregnable fortress - is home to the shuttered federal penitentiary that housed some of the most dangerous criminals in the US.
From BBC • Jan. 30, 2026
In theory that threatens Apple’s impregnable walled garden.
From The Wall Street Journal • Jan. 2, 2026
“Some criminals have understood that museums are not impregnable cultural fortresses,” said Pierre Noual, a French lawyer specializing in cultural heritage law.
From The Wall Street Journal • Nov. 13, 2025
“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
Fear that a $25,000 car will crumple like a toy in an accident, whereas a $50,000 car will wrap your loved ones in a cocoon of impregnable steel.
From "Freakonomics: A Rogue Economist Explores the Hidden Side of Everything" by Steven D. Levitt
Vocabulary lists containing impregnable
Power Suffix: -able
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1984
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"Joyas Voladoras" by Brian Doyle
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