The meaning of SUBTERRANEAN is being, lying, or operating under the surface of the earth. How to use subterranean in a sentence. Go Underground With Subterranean.

Add to word list under the ground: a subterranean passage / river (Definition of subterranean from the Cambridge Academic Content Dictionary © Cambridge University Press)

Subterranean definition: existing, situated, or operating below the surface of the earth; underground.. See examples of SUBTERRANEAN used in a sentence.

1. existing, situated, or operating below the earth's surface; underground. 2. existing or operating out of sight or secretly. n. 3. a person or thing that is subterranean.

Definition of subterranean adjective in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

subterranean meaning, definition, what is subterranean: beneath the surface of the Earth: Learn more.

Oct 7, 2025 · Adjective [edit] subterranean (not comparable) Below ground, under the earth, underground. quotations