antediluvial vs extinct

antediluvial

adj
  • Antiquated. 

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

extinct

adj
  • No longer used; obsolete, discontinued. 

  • No longer active. 

  • No longer in existence; having died out. 

verb
  • To make extinct; to extinguish or annihilate. 

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