音标：['lu:nәtik]
n. 疯人, 癫狂者, 愚蠢的人
a. 疯癫的, 愚蠢的, 丧心病狂的, 精神错乱的
【医】 精神错乱的, 精神病患者
在线英汉词典

lunatic的短语、例句：

lunatic n 1 (dated 旧) insane person 精神失常者; 疯子. 2 wildly foolish person 极愚蠢的人
You´re driving on the wrong side of the road, you lunatic! 你现在是逆行开车, 你这个蠢材! lunatic, adj 1 (dated 旧) insane 精神失常的; 疯的. 2 wildly foolish 极愚蠢的: a lunatic proposal 极愚蠢的建议. 3 (idm 习语) the ,lunatic `fringe (derog 贬) those members of a political or some other group whose views are regarded as wildly extreme or eccentric 极端分子
The lunatic fringe is/are ignored by most members of the party. 绝大部分党员对极端分子不予理睬.