adjective
- Being or operating under the surface of the earth.
- usage: "subterranean passages"; "a subsurface flow of water"
- synonyms: subterraneous
- Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed. ) "subterranean motives for murder"; "looked too closely for an ulterior purpose in all knowledge- Bertrand Russell
- synonyms: subterraneous, ulterior
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). subterranean. Retrieved September 20, 2026, from http://smartdefine.org/subterranean/definitions/1184674 |
| Chicago | WordNet. 2010. "subterranean" http://smartdefine.org/subterranean/definitions/1184674 (accessed September 20, 2026). |
| Harvard | WordNet 2010, subterranean, Smart Define, viewed 20 September, 2026, <http://smartdefine.org/subterranean/definitions/1184674>. |
| MLA | WordNet. "subterranean" 23 October 2010. Web. 20 September 2026. <http://smartdefine.org/subterranean/definitions/1184674> |