haunted vs untroubled

haunted

adj
  • Of a location, frequented by a ghost or ghosts. 

  • Showing a feeling of being disturbed. 

  • Obsessed (by an idea, threat, etc.). 

untroubled

adj
  • Without worries; free from care. 

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