audacity

noun, plural au·dac·i·ties.

boldness or daring, especially with confident or arrogant disregard for personal safety, conventional thought, or other restrictions.
effrontery or insolence; shameless boldness: His questioner’s audacity shocked the lecturer.
Usually audacities. audacious or particularly bold or daring acts or statements.

mid-15c., from Medieval Latin audacitas “boldness,” from Latin audacis genitive of audax (see audacious).