subterranean

A link of pitches perhaps, an a-rhythmic phrase that will lead to a strong subterranean pulsation.

Subterranean explorers puzzled over the mysterious red door that cut off access to underground tunnels leading to the bunker.

At the impressive Memorial Museum in Caen there is a darkly lit subterranean section called “France in the Dark Years.”

And it makes one appreciate the comparatively subterranean biases of NPR, PBS, and the BBC.

Edie Sedgwick, the subterranean princess, was undoubtedly interesting and fun.

Still water runs deep, they say; and a glacial cap may conceal subterranean fires.

By the light of this subterranean luminary they discovered that they were standing at the foot of an ancient castle.

The accompanying map of part of the Catacomb of Callixtus will indicate the general plan of these subterranean galleries.

She was cast into a bare and miserable dungeon, in that subterranean receptacle of woe, where there was not even a bed.

The tufa granolare, on the contrary, was admirably adapted for the construction of these subterranean cemeteries.