in contention vs unsettled

in contention

prep
  • Used other than figuratively or idiomatically: see in, contention. 

  • Contending for a title or championship. 

unsettled

adj
  • Unpaid. 

  • Not populated, having no settlers or other inhabitants. 

  • Disturbed, upset. 

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

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