女大不中留

女大不中留

Literally means:

daughter cannot be kept home when grown-up

Actually means:

one wants to leave his workplace and seek alternative chance

不中, not right or not suited.

This phrase means when the daughter is grown up, her parents are not supposed to keep her with them, but should get her married. It also means one wants to leave his workplace and to find another job.

不中，不宜，不适合。

女大不中留，在指女儿大了不宜再留在家里，应该出嫁了。也指某人想离开原单位，另找出路。