ଅର୍ଥ : Being or operating under the surface of the earth.
ଉଦାହରଣ :
Subterranean passages.
A subsurface flow of water.
ସମକକ୍ଷ : subterraneous
ଅର୍ଥ : Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed).
ଉଦାହରଣ :
Subterranean motives for murder.
Looked too closely for an ulterior purpose in all knowledge.
ସମକକ୍ଷ : subterraneous, ulterior