bitter vs unsociable

bitter

adj
  • Hateful or hostile. 

  • Having an acrid taste (usually from a basic substance). 

  • Harsh, piercing or stinging. 

  • Cynical and resentful. 

verb
  • To make bitter. 

noun
  • A type of beer heavily flavored with hops. 

  • A liquid or powder, made from bitter herbs, used in mixed drinks or as a tonic. 

  • A turn of a cable about the bitts. 

  • A hardware system whose architecture is based around units of the specified number of bits (binary digits). 

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