bravura vs refined

bravura

adj
  • Overly showy; ostentatious. 

noun
  • A highly technical or difficult piece, usually written for effect. 

  • A display of daring. 

refined

adj
  • Elegant, sometimes (derogatory) affected, prissy, or bloodless. 

  • Developed, improved. 

  • Subtle, scrupulous, carefully thought out. 

  • Highly-processed and pure. 

  • Free of dross or alloy. 

  • Dealing in a refined product such as sugar or petroleum. 

  • Elevated and polished. 

noun
  • The refined form of a commodity, as opposed to its raw or generic form. 

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