affront vs injustice

affront

noun
  • An open or intentional offense, slight, or insult. 

verb
  • To meet defiantly; to confront. 

  • To insult intentionally, especially openly. 

injustice

noun
  • Unfairness; the state of not being fair or just. 

  • Violation of the rights of another person or people. 

  • Absence of justice; unjustice. 

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