overweening

1. ADJ If you want to emphasize your disapproval of someone's great ambition or pride, you can refer to their overweening ambition or pride. 自負的[正式] [usu ADJ n]

"Your modesty is a cover for your overweening conceit," she said. “你用謙遜的外表掩飾自負的內(nèi)心，”她說。