appreciation vs disbelief

appreciation

noun
  • The act of appreciating. 

  • A rise in value. 

  • A fair valuation or estimate of merit, worth, weight, etc.; recognition of excellence; gratitude and esteem. 

  • Accurate perception; true estimation. 

disbelief

noun
  • The loss or abandonment of a belief; cessation of belief. 

  • Astonishment. 

  • Unpreparedness, unwillingness, or inability to believe that something is the case. 

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