passivity vs ruckus

passivity

noun
  • A lack of initiative. 

  • The state of being passive. 

  • Submissiveness. 

ruckus

noun
  • A noisy disturbance and/or commotion. 

  • A row, fight. 

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