generosity vs unkindness

generosity

noun
  • A generous act. 

  • The trait of being abundant, more than adequate. 

  • The trait of being willing to donate money, time or resources. 

unkindness

noun
  • The state or quality of being unkind. 

  • An unkind act. 

  • The collective noun for ravens 

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