defiance vs invincibility

defiance

noun
  • The feeling, or spirit of being defiant. 

  • A challenging attitude or behaviour; challenge. 

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

invincibility

noun
  • The quality or state of being invincible; invincibleness. 

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