extratemporal vs seasonable

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. 

seasonable

adj
  • Opportune; occurring at an appropriate or suitable time. 

  • Appropriate to the current season of the year. 

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