bravura vs gnarly

bravura

adj
  • Overly showy; ostentatious. 

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

  • A display of daring. 

gnarly

adj
  • Unpleasant, awful, ugly. 

  • Excellent; attractive. 

  • Of music or a sound: harsh. 

  • Having or characterized by gnarls; gnarled. 

  • Dangerous; difficult. 

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