irrational

1. ADJ If you describe someone's feelings and behaviour as irrational, you mean they are not based on logical reasons or clear thinking. 不理性的

...an irrational fear of science. …一種對科學毫無根據的恐懼。

2. irrationallyADV 不理性地

My husband is irrationally jealous over my past loves. 我丈夫對我從前的幾次戀愛毫無道理地妒忌。