undesirable vs unsociable

undesirable

noun

  • An undesirable person. 

adj

  • objectionable or not likely to please 

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