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:

British Columbia, the third largest province, is supremely the land of the wild outdoors, with the constant challenge of rugged mountains, seemingly impenetrable forests, a jagged coastline, and dizzily fast-moving rivers.
Dobson, seem irrelevant or impenetrable to onlookers, mere quibbles over detail.
It seemed as if Gore's thin hard carapace of impenetrability has been replaced by a thick, smooth gelatinous coating that is equally impenetrable.
I wonder, however, having now watched the show, that it may be its impenetrable Japanese-ness is what really scares parents.
But judges, whose jobs depend on judicial procedures being impenetrable, convoluted, and self-contradictory, systematically conceal what they are thinking of when they use the phrase "reasonable doubt."