bravura vs unkempt

bravura

adj
  • Overly showy; ostentatious. 

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

  • A display of daring. 

unkempt

adj
  • Disorderly; untidy; messy; not kept up. 

  • Uncombed; dishevelled. 

  • Rough; unpolished 

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