undone
adjective usuk/ʌnˈdʌn/
(NOT FASTENED)
解开的，松开的
unfastened
Why didn't you tell me my zip was undone! 你为什么不告诉我我的拉锁开了？
Damn, my shoe-laces have come undone again. 该死，我的鞋带又开了。
(DISAPPOINTED)
be undoneold use （对将来）绝望，心灰意冷
to be without hope for the future, having experienced great disappointment, loss of money, etc.