braggadocious Pronunciation: /ˌbragəˈdəʊʃəs/Definition of braggadocious adjective informal, chiefly US boastful or arrogant:it sounds braggadocious, but I don’t think I ever dropped a pass in a game I’ve never been a braggadocious kind of guyOrigin: mid 19th century: from braggadocio + -ousbraggadocious in other Oxford dictionaries Definition of braggadocious in the US English dictionary