老气横秋 -------- lacking in youthful vigor
例句:
A: Dick is lacking in youthful vigor in appearance. But in fact he is twenty-five years old.
迪克看起来老气横秋,实际上他才25岁。
B: No, he's not, is he? I don't believe It!
不会吧,我不相信。
同义词:
arrogant on account of one's seniority
adj. 傲慢的,自大的