unfit

adj. /ʌnˈfɪt/ B1

不适宜的；不合格的；身体欠佳的

Not suitable or qualified; not physically healthy or in good condition.

仙境例句

The Frog-Footman was unfit for his job, for he never once opened the door.

青蛙仆人根本不称职，因为他一次门也没开过。