English adjective: subterraneous | |||
1. | subterraneous being or operating under the surface of the earth | ||
Samples | Subterranean passages. A subsurface flow of water. | ||
Synonyms | subterranean | ||
Similar | subsurface | ||
Antonyms | overhead, surface | ||
2. | subterraneous lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed) | ||
Samples | Subterranean motives for murder. Looked too closely for an ulterior purpose in all knowledge. | ||
Synonyms | subterranean, ulterior | ||
Similar | covert | ||
Antonyms | overt, open | ||