unfriendliness vs unsociable

unfriendliness

noun
  • The state of being unfriendly. 

  • An unfriendly act, unfriendly acts / actions. 

unsociable

noun
  • A person who is not sociable. 

adj
  • not congenial or compatible 

  • not desiring the company of others 

  • unfriendly 

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