defiance vs reluctance

defiance

noun
  • Open or bold resistance to or disregard for authority, opposition, or power. 

  • A challenging attitude or behaviour; challenge. 

  • The feeling, or spirit of being defiant. 

reluctance

noun
  • Unwillingness to do something. 

  • Hesitancy in taking some action. 

  • That property of a magnetic circuit analogous to resistance in an electric circuit. 

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