impertinence vs shamelessness

impertinence

noun
  • An instance of this; a moment of being impertinent. 

  • Insolence; impudence. 

  • Lack of pertinence; irrelevance. 

  • The fact or character of being out of place; inappropriateness. 

shamelessness

noun
  • The state or characteristic of being shameless. 

  • An utterance or action which is shameless. 

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