irrational adjective uk /ɪˈræʃ.ən.əl/ us /ɪˈræʃ.ən.əl/ C2 not using reason or clear thinking: 不理智的，没有理性的 It's totally irrational, but I'm frightened of mice.这很荒唐，但我的确害怕老鼠。 His parents were worried by his increasingly irrational behaviour.他的父母因他的行为越来越乖僻而担忧。
Related words
irrationally
irrationality
irrational | American Dictionary
irrational adjective us/ɪˈræʃ·ə·nəl/ not based on reason or clear thinking; not reasonable: One of her main themes is the irrational nature of love.