antithesis vs other side

antithesis

noun
  • A device by which two contrasting ideas are juxtaposed in parallel form; a figure of speech arranged in this manner 

  • A proposition that is the diametric opposite of some other proposition. 

other side

noun
  • Used other than figuratively or idiomatically: see other, side. 

  • The afterlife, as a supernatural realm inhabited by spirits of deceased people. 

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