delirious(形容词):神志不清的;(因高烧、疾病等)说胡话的;(也可指)极度兴奋或狂喜到近乎失去理智的。常见用法是 be delirious with(因……而欣喜若狂/激动得发昏)。
/dɪˈlɪriəs/
She was delirious with fever and kept calling my name.
她发高烧神志不清,一直喊我的名字。
After the team won the championship, the fans were delirious with joy, singing in the streets long into the night.
球队夺冠后,球迷们欣喜若狂,在街头高歌直到深夜。
来自拉丁语 dēlīrius,原意与“偏离犁沟/偏离正轨”有关(de- “离开” + lira “犁沟/轨迹”),引申为“偏离理智、精神错乱”,后来在英语中既可指疾病引起的谵妄,也可泛指兴奋到失控的状态。