madness
/ˈmædnɪs/noun
mass noun
1- the state of being mentally ill, especially severely（尤指严重的）疯狂（或精神失常）。
1.1
- extremely foolish behaviour极度愚蠢：
in this day and age it is madness to allow children to roam around after dark.
在这个年代, 天黑后让小孩出去闲逛是非常愚蠢的。
1.2
- a state of frenzied or chaotic activity狂热; 混乱：
from about midnight to three in the morning it's absolute madness in here.
大约从午夜到凌晨三点, 这里是一片混乱。