bump·tious
adjective/ˈbʌmpʃəs/
/ˈbʌmpʃəs/
(disapproving)- showing that you think that you are very important; often giving your opinions in a loud, confident and annoying way
傲慢的；自以为了不起的；骄横的 Word Originearly 19th cent.: humorously from bump, on the pattern of fractious.