antediluvial vs recent

antediluvial

adj
  • Antiquated. 

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

recent

adj
  • Having done something a short while ago that distinguishes them as what they are called. 

  • Up-to-date; not old-fashioned or dated. 

  • Particularly in geology, palaeontology, and astronomy: having occurred a relatively short time ago, but still potentially thousands or even millions of years ago. 

  • Having happened a short while ago. 

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