irrational violence/fear/panic 没有理性的暴行/恐惧/恐慌
The market’ s enthusiasm for high-tech stocks was irrational but understandable. 市场对高科技股的热情虽然不理性，却是可以理解的。
I knew I was being irrational, but when she was late I began to fear the worst. 我知道自己有些不理智，但当她迟到时我就开始害怕最糟糕的事情会发生。