obsessed vs untroubled

obsessed

adj
  • Intensely preoccupied with or by a given topic or emotion; driven by a specified obsession. 

  • Influenced or controlled by evil spirits, but less than possessed in that the spirits do not actually reside in the victim. 

untroubled

adj
  • Without worries; free from care. 

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