idleness vs loafing

idleness

noun
  • The state of being idle; inactivity. 

  • Groundlessness; worthlessness; triviality; vanity; frivolity. 

  • The state of being indolent; indolence. 

loafing

noun
  • The idle behaviour of somebody who loafs. 

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