inability vs ungentlemanliness

inability

noun
  • Lack of the ability to do something; incapability. 

  • Lack of the option to do something; powerlessness. 

ungentlemanliness

noun
  • The state or condition of being ungentlemanly. 

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