bigheaded
adjective disapproving uk/ˌbɪɡˈhed.ɪd/ us/ˌbɪɡˈhed.ɪd/
自负的，傲慢的
thinking that you are more important or more intelligent than you really are
She's so bigheaded! 她自负得不得了！
Compare: swollen head
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。