pariah vs undesirable

pariah

noun
  • Synonym of outcast: A person despised and excluded by their family, community, or society, especially a member of the untouchable castes in Indian society. 

  • A similarly despised group of people or species of animal. 

undesirable

noun
  • An undesirable person. 

adj
  • objectionable or not likely to please 

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