impure vs profligate

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 

profligate

adj
  • Immoral; abandoned to vice. 

  • Inclined to waste resources or behave extravagantly. 

noun
  • An overly wasteful or extravagant individual. 

  • An abandoned person; one openly and shamelessly vicious; a dissolute person. 

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