| Subterraneous (a.) Being or lying under the surface of the earth; situated within the earth, or under ground; as, subterranean springs; a subterraneous passage. Thesaurus Entries abstruse, beclouded, blind, close, clouded, concealed, covered, covert, deep-buried, drowned, eclipsed, engulfed, flooded, guarded, hid, hidden, immersed, in a cloud, in a fog, in eclipse, in purdah, in the wings, incommunicado, inundated, latent, mysterious, obfuscated, obscure, obscured, occult, privy, recondite, secluded, secluse, secret, sequestered, shrouded, subaqueous, submarine, submerged, submersed, subterranean, subterraneous, sunken, under an eclipse, under cover, under house arrest, under wraps, underground, undersea, underwater, unknown, wrapped in clouds |