Words similar to subterranean

Example sentences for: subterranean

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

The Rolling Stones, darker, more subterranean, and with a deeper rhythm section, are more in touch with Dionysius.
Lewis' answer emerged after a pleasant subterranean rumbling that I took to be laughter (though his answer was entirely serious).
Guided tours explain the earliest chapters of this ancient town with a visit to its subterranean depths.
It links to the larger caves through subterranean tunnels.
What Powers describes sounds frankly too subterranean to amount to a bohemia anymore.