Definition of "bravura"

Yet just as, in opposition to the majority, I admired Fosse's Nightsongs and The Girl On The Sofa, so I found myself absorbed by this 70-minute play; and, whatever it may mean, there is no denying the production's visual bravura.

2011 May 11, Michael Billington, “I Am the Wind”, in The Guardian‎

Look closely, and the minute interconnectedness of her novels is a bravura achievement.

2012, John Mullan, What Matters in Jane Austen?: Twenty Crucial Puzzles Solved, page 4

But that won't stop the breakout star of the A&E reality series Dallas Three Ways from delivering one of his bravura, impromptu mini-lectures on the subject of Murphy's history of homophobic stand-up comedy.

2016, Christopher Kelly, The Pink Bus, Maple Shade, New Jersey: Lethe Press, page 116