Audacious

# to be extremely bold or daring; to be recklessly courageous in expression or action. To be audacious is to be unafraid to convey emotion or opinion (literary). 
# In Sir Gawain and the Green Knight, the knight Sir Gawain demonstrates immense courage as he volunteers to participate in the Green Knight's murderous game in place of King Arthur as he asks to "let this fray be [his]" for the safety and reputations of his kinsmen (the Pearl Poet). 
# Jackson Polluck's "Autumn Rhythm" is a bold and chaotic piece; as an abstract work, it is daring in straying from traditional art.