bumptious

adj.

盲目自夸的，盲目自大的，傲慢的；自以为是；

1. His classmates called him a show-off because of his bumptious airs.
   由于他老是装出一副自以为是的架势,所以同学们就叫他“自大的夜郎”。

A Bumptious Guide to Book Writing
‘Bumptious and Above his Station’
Bumptious Bath, the town that Beau Nash built
4. Bumptious Reading and Priggish antanaclasis
A bumpy, bumptious ride, right to the end
Scholarship Winners Told Beware of Bumptious Vanity
Anthony Trollope on Dealing with the Bumptious Adolescent
"These ignorant and bumptious reviewers": F. J. Furnivall in Defence of Conrad
The Bumptious Intellectuals and the Urban Humanities Spirit of Suzhou During the Mid and Late Ming Dynasty
Anthony Trollope on dealing with the bumptious adolescent. (Literary Quotes).(offensively conceited or self-assertive)(Brief Article)