傲慢だ
That boss is arrogant.
その社長は傲慢です
That boss is arrogant at the company.
その社長は会社で傲慢です
That boss is arrogant about the staff's advice at the company.
その社長は会社で職員たちの助言を傲慢です
That boss is completely arrogant about the staff's advice at the company.
その社長は会社で職員たちの助言をまったく傲慢です
That boss never listens to the staff's advice at the company, which is arrogant.
その社長は会社で職員たちの助言をまったく聞かず傲慢です