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:

Or maybe, like Lee Harvey Oswald in Don DeLillo's Libra , Shearer is both real and invented--a creature of multiple coincidences who seems at the same time to be operating in the service of a grand, impenetrable design.
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.
Dobson, seem irrelevant or impenetrable to onlookers, mere quibbles over detail.
DC just shelled out a fortune for a new MCI stadium downtown, and a new Redskins stadium, and every idiotic newsman and woman is required to nod knowingly when the sports guy makes some obscure reference to some impenetrable football play, and anyone like me who finds the entire exercise faintly ridiculous is regarded as unpatriotic and unmanly.
The paper refers readers to an Internet site that automatically creates an impenetrable "post-modern" essay each time a user logs on.