audaciousness

There was a cold gleam of audaciousness in the Swede's eyes.

Those who were present would have punished this audaciousness on the spot.

And because (though he was an half-fool) he saw that his practice was pleasing, he would do it with the more audaciousness.

A casual observer might, perhaps, applaud the audaciousness of this conduct.

They became attractive from their audaciousness and their ignorance that they were troublesome.