bravura vs impressive

bravura

adj
  • Overly showy; ostentatious. 

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

  • A display of daring. 

impressive

adj
  • Capable of being impressed. 

  • Appealing. 

  • Making, or tending to make, a positive impression; having power to impress 

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