impure vs materialist

impure

adj
  • Unhallowed; defiled by something unholy, either physically by an objectionable substance, or morally by guilt or sin 

  • Unchaste; obscene (not according to or not abiding by some system of sexual morality) 

  • Containing undesired intermixtures 

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 impure and materialist occurred in a corpus of books? (source: Google Ngram Viewer )