adv.不合理地,无理性地
They reacted irrationally to the challenge of Russian power.
他们对俄军的挑衅做出了很不理智的反应.
The market is behaving irrationally.
市场已失去了理性。
My husband is irrationally jealous over my past loves.
我丈夫无端地嫉妒我曾经的恋人。