A few of the questions caught me unprepared. 其中的一些问题让我措手不及。

unprepared to do sth The country is unprepared to deal with new infectious diseases. 这个国家在对付新的传染病方面没有准备。

+for I was completely unprepared for the heat there. 我对那里的炎热毫无准备。

He’ s unprepared to listen to opposing views. 他不愿意听反对意见。