idleness vs lifelessness

idleness

noun
  • The state of being idle; inactivity. 

  • Groundlessness; worthlessness; triviality; vanity; frivolity. 

  • The state of being indolent; indolence. 

lifelessness

noun
  • The property of being lifeless, the lack of apparent animation. 

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