au·da·cious /ôˈdāSHəs/ adjetive adjetive: audacious     1. Very confident and daring.      Synonyms: bold, daring, fearless, intrepid, brave, courageous, valiant, heroic, plucky.      Antonyms: timid Origin: LATIN audere dere LATIN audax audac- bold ENGLISH -ious audacious mid 16th century mid 16th century: from Latin audax, audac- 'bold' (from audere 'dare') + -ious. *Audio courtesy of Lexico Publishing, LLC