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
High-flying Crystal Palace are the only side to rival City's attacking threat, while Newcastle are living up to their name by being almost as impregnable at the back as Arsenal.
From BBC • Oct. 15, 2025
“If Storm’s End is so impregnable, how do you mean to take it?” asked Malo.
From "A Dance with Dragons" by George R. R. Martin
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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