音标：[in'sæniti]
n. 疯狂, 愚顽, 精神错乱
【医】 精神病
在线英汉词典

insanity的短语、例句：

insanity n[U] madness; being mad 疯狂; 精神错乱
a plea of insanity, ie a plea in a court of law that a crime was due to the defendant having a mental disorder 精神失常的抗辩（在法庭上被告的辩护, 称作案时精神失常）.