பொருள் : Lying beyond what is openly revealed or avowed (especially being kept in the background or deliberately concealed).
எடுத்துக்காட்டு :
Subterranean motives for murder.
Looked too closely for an ulterior purpose in all knowledge.
ஒத்த சொற்கள் : subterranean, subterraneous
பொருள் : Beyond or outside an area of immediate interest. Remote.
எடுத்துக்காட்டு :
A suggestion ulterior to the present discussion.
Without...any purpose, immediate or ulterior.