passivity vs slothfulness

passivity

noun
  • The state of being passive. 

  • A lack of initiative. 

  • Submissiveness. 

slothfulness

noun
  • The state or quality of being slothful. 

  • The result or product of being slothful. 

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