Audacious

1. adjective

   unrestrained by convention or propriety; ; ; - Los Angeles Times; ; ; - Bertrand Russell

   “an audacious trick to pull”

   Similar: barefaced, bodacious, brassy, brazen, insolent

2. adjective

   invulnerable to fear or intimidation

   “audacious explorers”

   Similar: brave, dauntless, fearless, hardy, intrepid, unfearing

3. adjective

   disposed to venture or take risks

   “audacious visions of the total conquest of space”

   Similar: daring, venturesome, venturous