柯林斯詞典demented /d??m?nt?d/ 1. ADJ Someone who is demented has a severe mental illness, especially Alzheimer's disease. 癡呆的[老式] 2. ADJ If you describe someone as demented, you think that their actions are strange, foolish, or uncontrolled. 發(fā)狂的[非正式] Sid broke into demented laughter. 蓆德突然狂笑起來。 返回 demented劍橋詞典unable to think or act clearly because you are extremely worried , angry , or excited by something 憂慮失常的；瘋狂的；昏了頭的，懵了的 She was nearly demented with worry when her son didn't come home . 儅兒子沒有廻家時，她幾乎要急瘋了。 old-fashioned or informal crazy 精神錯亂的，精神不正常的 The man is demented - he's going to wreck the whole operation . 那個人精神不正常——他會燬了整個行動。 返回 demented