Similar Words
covert
subsurface

Subterraneous — synonyms, definition

1. subterraneous (Adjective)

2 synonyms
subterranean ulterior
2 definitions

subterraneous (Adjective) — Being or operating under the surface of the earth. ex. "subterraneous passages"

subterraneous (Adjective) — Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed). ex. "subterraneous motives for murder"