brag·ga·do·ci·o
noun/ˌbræɡəˈdəʊtʃiəʊ/
/ˌbræɡəˈdəʊtʃiəʊ/
[uncountable] (from Italian, literary)- behaviour that seems too proud or confident
傲慢；自负 Word Originlate 16th cent. (denoting a boaster): from Braggadocchio, the name of a braggart in Spenser's The Faerie Queene, from brag or braggart + the Italian suffix -occio, denoting something large of its kind.