insanity /ɪnˈsænəti/ noun plural insanities
plural insanities
Learner's definition of INSANITY
1
[noncount] : severe mental illness : the condition of being insane精神错乱；精神失常 2
: something that is very foolish or unreasonable愚蠢（或不理智）的事 [noncount]
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His friends thought his decision to quit his job was pure insanity.朋友们认为他辞职的决定愚蠢。
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Please, no more violence. It's time to stop this insanity.请不要再使用暴力。是停止这种荒唐行为的时候了。
[count]