unsettled vs vicissitudinous

unsettled

adj
  • Disturbed, upset. 

  • Unpaid. 

  • Not populated, having no settlers or other inhabitants. 

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

vicissitudinous

adj
  • Characterized by or filled with vicissitudes. 

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