sadness vs satisfaction

sadness

noun
  • The state or emotion of being sad. 

  • An event in one's life that causes sadness. 

satisfaction

noun
  • A fulfilment of a need or desire. 

  • A reparation for an injury or loss. 

  • The pleasure obtained by such fulfillment. 

  • A vindication for a wrong suffered. 

  • The source of such gratification. 

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