unprotected vs untouchable

unprotected

adj
  • Not protected; lacking defence or protection; exposed. 

untouchable

adj
  • Not able to be touched. 

  • Not able to be defeated or bested. 

noun
  • A criminal who is so well-connected that they cannot be harmed. 

  • Synonym of outcast: a person excluded from society. 

  • A law enforcement agent immune to intimidation, bribery, or seduction. 

  • A member of the lowest and most despised caste in traditional Indian society. 

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