bravado vs defiance

bravado

noun
  • A swaggering show of defiance or courage. 

  • A false show of courage. 

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. 

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