bravura vs crass

bravura

adj
  • Overly showy; ostentatious. 

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

  • A display of daring. 

crass

adj
  • Lacking finesse; crude and obvious. 

  • materialistic 

  • dense 

  • coarse; crude; unrefined or insensitive; lacking discrimination 

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