nonhuman vs otherworldly

nonhuman

adj
  • Not human; not of the human race. 

noun
  • A creature or thing that is not human. 

otherworldly

adj
  • Not belonging to the real world; unnatural; odd and unfamiliar. 

  • Of, concerned with, or preoccupied with a different world than that of the tangible here and now, such as a heavenly, spiritual, or imaginary world. 

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