brutality vs passivity

brutality

noun
  • The state of being brutal. 

  • A cruel or savage act. 

  • The use of excessive physical force, often in the form of violence. 

passivity

noun
  • A lack of initiative. 

  • The state of being passive. 

  • Submissiveness. 

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