subterraneous

1. 1.

   being or operating under the surface of the earth

   “subterranean passages”

   “a subsurface flow of water”

   Synonymssubterranean

   Similarsubsurface
2. 2.

   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”

   Synonymssubterraneanulterior

   Similarcovert

Questions about subterraneous

What does subterraneous mean?

subterraneous means "being or operating under the surface of the earth". That is the primary sense; the word has 2 in total, listed in full on this page.

How many syllables are in subterraneous?

subterraneous has 5 syllables: sub-ter-ra-ne-ous. The stress falls on "ne".

What is another word for subterraneous?

Close synonyms include subterranean, subterranean, ulterior. Each sense on this page lists its own synonyms, because a word with several meanings rarely has one substitute that works for all of them.

Is subterraneous a common word?

subterraneous is banded "Uncommon" — turns up in careful writing rather than conversation. The band comes from how often the word appears in a large corpus of everyday English, not from an editor's impression.