passivity vs weariness

passivity

noun
  • A lack of initiative. 

  • The state of being passive. 

  • Submissiveness. 

weariness

noun
  • A lack of interest or excitement. 

  • Exhaustion, fatigue or tiredness. 

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