joy vs pessimism

joy

noun
  • Anything that causes such a feeling. 

  • Luck or success; a positive outcome. 

  • A feeling of extreme happiness or cheerfulness, especially related to the acquisition or expectation of something good. 

verb
  • To feel joy, to rejoice. 

pessimism

noun
  • A general belief that bad things will happen. 

  • The condition of being pessimal. 

  • The doctrine that this world is the worst of all possible worlds. 

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