Definitions

1. adjective

situated or done on the further side of something; being on the other side of something

“The ulterior motive behind the company’s decision was to increase profits.”

2. noun

a motive or reason that is hidden or not immediately apparent

“The ulterior was greed when they decided to buy the company.”

3. noun

a part of the universe beyond the Earth or a particular region

“The astronomers studied the ulterior regions of the galaxy.”