downstream vs ulterior

downstream

adj
  • Occurring later than something else; (also, usually, especially) influenced by something else; being a consequence of something else. 

  • Further along in the flow of current, in relation to a river, stream, bloodstream, or other flow of fluid. 

  • In the direction from the server to the client. 

  • Towards the 3′ end of a DNA molecule. 

verb
  • To stream downward. 

adv
  • Following the path of a river or stream 

ulterior

adj
  • Beyond what is obvious or evident. 

  • Being intentionally concealed so as to deceive. 

  • Situated beyond, or on the farther side. 

How often have the words downstream and ulterior occurred in a corpus of books? (source: Google Ngram Viewer )