subterranean synonyms

subterranean

modif.

  1. Hidden

    secret, furtive, concealed; see hidden 2.

  2. Below ground

    subsurface, sunk, sunken, subterraneous; see underground.

Webster's New World Roget's A-Z Thesaurus Copyright © 1999 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.