1) Arrogant 2) Big-headed 3) Big-mouthed 4) Braggart 5) Bragging 6) Braggy 7) Conceited 8) Crowing 9) Exhibiting self-importance 10) Full of hot air 11) Full of oneself 12) Proud 13) Self-aggrandising 14) Self-aggrandizing 15) Tending to brag 16) Vainglorious 1) Braggart 2) Bragging 3) Braggy 4) Crowing 5) Egotistic 6) Fullofpride 7) Gassy 8) Overconfident 9) Proud 10) Vainglorious 11) Vaunting 
• (a.) Given to, or full of, boasting; inclined to boast; vaunting; vainglorious; self-praising.
Boast'ful adjective Given to, or full of, boasting; inclined to boast; vaunting; vainglorious; self- praising. -- 
[adj] - exhibiting self-importance
braggart(a) adjective exhibiting self-importance; `big talk`
given to or characterized by boasting.