antediluvial vs parachronistic

antediluvial

adj
  • Antiquated. 

  • Of or pertaining to a time before Noah's flood. 

parachronistic

adj
  • Belonging to an earlier time; too old to be used; primitive; out of date. 

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