This is an audacious terrorist attack.
This is the most audacious and serious kind of attack.
He is a hard working, audacious and highly refined person.
Several persons are injured in an audacious mass shooting.
This man is whimsical and audacious.
I used to be audacious during my school days.
Synonyms of Audacious
adventurous, courageous, intrepid, daring, impudent, bold, dauntless, brave, gallant, valiant