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.

Though the Cuban government has acknowledged talks, Díaz-Canel warned last month that “any act of aggression will clash with an impregnable resistance.”

From The Wall Street Journal • Apr. 3, 2026

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

Singapore was considered impregnable, but it wasn’t prepared for an attack from the mainland, and its 60,000-strong garrison surrendered on Feb. 8, 1942, the worst defeat in British history.

From The Wall Street Journal • Oct. 27, 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

Satisfied that the door was now impregnable I then scuttled back to the bedroom and there leaped onto the bed by the latticed window.

From "Kaffir Boy: An Autobiography" by Mark Mathabane