The meeting was put off,which was exactly what we wanted.这个句子是否是定语从句?如果是,从句修饰了哪个先行词?

The meeting was put off,which was exactly what we wanted.这个句子是否是定语从句?如果是,从句修饰了哪个先行词?
The meeting was put off,which was exactly what we wanted.这个句子是否是定语从句?
如果是,从句修饰了哪个先行词?

The meeting was put off,which was exactly what we wanted.这个句子是否是定语从句?如果是,从句修饰了哪个先行词?
这是定语从句.
这类句子被称为非限制性定语从句.
which指的是前面这句话
也就是说“会议被延长了,这（指会议被取消这件事）正是他想要的.”
which=the meeting was put off.

是，属于非限制性定语从句

非限制性定语从句，which从句修饰先行词the meeting