Words similar to impenetrable

Example sentences for: impenetrable

How can you use “impenetrable” in a sentence? Here are some example sentences to help you improve your vocabulary:

The Algarve is more recognizable for impenetrable blocks of tourist apartments, hotels, and meticulously manicured golf courses.
His Southern accent is so impenetrable that during his short-lived but entertaining 1984 presidential run, he was introduced by Ted Kennedy as "the first non-English speaking candidate for president."
I wonder, however, having now watched the show, that it may be its impenetrable Japanese-ness is what really scares parents.
He stands accused of authoring an impenetrable screed titled Industrial Society and Its Future , and of building bombs.
In the last 10 years, Mafia operations have been devastated by arrests . For instance, last year federal agents busted the bulk of Detroit's family--one of the most powerful and impenetrable.