audacious
1. [ adjective ] invulnerable to fear or intimidation
Synonyms: dauntless brave intrepid unfearing fearless
Examples:

"audacious explorers" "fearless reporters and photographers" "intrepid pioneers"

Related terms: bold
2. [ adjective ] unrestrained by convention or propriety
Synonyms: brazen insolent brassy bodacious brazen-faced bold-faced barefaced
Examples:

"an audacious trick to pull" "a barefaced hypocrite" "the most bodacious display of tourism this side of Anaheim"- Los Angeles Times "bold-faced lies" "brazen arrogance"

Related terms: unashamed
3. [ adjective ] disposed to venture or take risks
Synonyms: daring venturous venturesome
Examples:

"audacious visions of the total conquest of space" "an audacious interpretation of two Jacobean dramas" "the most daring of contemporary fiction writers" "a venturesome investor" "a venturous spirit"

Related terms: adventurous
Similar spelling:   audaciously
  autoecious