bravura vs unfriendly

bravura

adj
  • Overly showy; ostentatious. 

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

  • A display of daring. 

unfriendly

adj
  • Unfavourable. 

  • Not friendly; hostile; mean. 

noun
  • An enemy. 

adv
  • in an unkind or unfriendly manner; not as a friend 

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