unsatisfied vs unsettled

unsatisfied

adj
  • Not satisfied, especially with the quantity of something; dissatisfied; uncontented. 

  • Not gratified; not having been fulfilled or met. 

unsettled

adj
  • Disturbed, upset. 

  • Unpaid. 

  • Not populated, having no settlers or other inhabitants. 

  • Not in a steady condition, uncertain, subject to change. 

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