unbefriended vs unsociable

unbefriended

adj
  • Not befriended; lacking friends. 

unsociable

adj
  • unfriendly 

  • not congenial or compatible 

  • not desiring the company of others 

noun
  • A person who is not sociable. 

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