American English

Definition of bumptious adjective from the Oxford Advanced American Dictionary

 

bumptious

 adjective
adjective
NAmE//ˈbʌmpʃəs//
 
(disapproving)
 
jump to other results
showing that you think that you are very important; often giving your opinions in a loud, confident, and annoying way
See the Oxford Advanced Learner's Dictionary entry: bumptious