disillusion vs unfaith

disillusion

noun
  • The state of having been or process of becoming freed of false belief. 

  • The act or process of disenchanting or freeing from a false belief. 

verb
  • To free or deprive of illusion; to disenchant. 

unfaith

noun
  • Absence of faith. 

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