intrepidly daring; adventurous
an audacious attempt on the summit
recklessly bold; rash
an audacious move that paid off
insolent or presumptuous
audaciously adv
audaciousness noun
audacity /awʹdasiti/ noun
[French audacieux, from audace boldness, from Latin audacia, from audac-, audax bold, from audēre to dare]