otherworldly vs superterrestrial

otherworldly

adj
  • 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. 

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

superterrestrial

adj
  • Above the Earth or earthly concerns. 

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