extratemporal vs untimely

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. 

untimely

adj
  • At an inopportune time. 

  • Early; premature. 

adv
  • Prematurely. 

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