ignorance vs ungentlemanliness

ignorance

noun
  • The condition of being uninformed or uneducated; lack of knowledge or information. 

  • Sins committed through ignorance. 

ungentlemanliness

noun
  • The state or condition of being ungentlemanly. 

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