companionless vs unsociable

companionless

adj
  • Without a companion; friendless, alone. 

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 companionless and unsociable occurred in a corpus of books? (source: Google Ngram Viewer )