expression
haughty; arrogant; holding one's head high
Idiomatic expression describing someone who acts superior or overly proud. Often used in negative contexts to criticize someone's attitude. Compare with 頭の高い, which has the same meaning.
See also: 頭の高い
彼は成功してから頭が高くなった。
He became haughty after his success.
そんなに頭が高いと、友達
If you're that arrogant, you'll lose your friends.