injustice vs insult

injustice

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

  • Violation of the rights of another person or people. 

  • Absence of justice; unjustice. 

insult

noun
  • Something that causes offence (for example, by being of an unacceptable quality). 

  • Something causing disease or injury to the body or bodily processes; the injury so caused. 

  • Action or form of speech deliberately intended to be rude; (countable) a particular act or statement having this effect. 

verb
  • To be insensitive, insolent, or rude to (somebody); to affront or demean (someone). 

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