eternal vs extratemporal

eternal

adj
  • existing outside time; as opposed to sempiternal, existing within time but everlastingly 

  • Lasting forever; unending. 

  • Constant; perpetual; ceaseless; ever-present. 

noun
  • One who lives forever; an immortal. 

extratemporal

adj
  • That appears to happen outside of time. 

  • Of or pertaining to the side of the head behind the eyes; external to the temporal bone of the skull. 

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