showing a willingness to take surprisingly bold risks.
"a series of audacious takeovers"
synonyms: bold, daring, fearless, intrepid, brave, courageous, valiant, heroic, plucky; More
showing an impudent lack of respect.
"an audacious remark"
synonyms: impudent, impertinent, insolent, presumptuous, cheeky, irreverent, discourteous, disrespectful, insubordinate, ill-mannered, unmannerly, rude, brazen, shameless, pert, defiant, cocky, bold (as brass); More