irreligious vs materialist

irreligious

adj
  • Contrary to religious beliefs and practices. 

  • In conscious rejection of religion. 

  • Having no relation to religion. 

materialist

adj
  • Having features typical of philosophical materialism. 

noun
  • Someone who is materialistic, concerned only with material possessions. 

  • A follower or proponent of philosophical materialism. 

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