ETYM French audacieux, as if from Late Lat. audaciosus (not found), from Latin audacia audacity, from audax, -acis, bold, from audere to dare.
1. Disposed to venture or take risks; SYN. daring, venturesome, venturous.
2. Invulnerable to fear or intimidation; SYN. brave, dauntless, fearless, intrepid, unfearing.
3. Unrestrained by convention or propriety.