WordWeb Online

1. [N. Amer, informal] Incorrigible
   "a bodacious gossip"
    
2. [N. Amer, informal] Unrestrained by convention or propriety
   "the most bodacious display of tourism this side of Anaheim";
   - audacious, barefaced, bald-faced, brassy, brazen, brazen-faced, insolent
    
3. Attractive, great, huge

See also: unashamed, unmitigated

Encyclopedia: Bodacious