To Be In Disorder
To Be In Disarray, To Be Disordered, To Be Disturbed
intransitive verb, ichidan verb
The kanji means riot, but this verb version word doesn't really mean "to riot." It's more like to be in disorder. But if you think about it, when things are rioting and crazy, they definitely are in disorder, so you can think of it that way. You can differentiate this from the future word 乱す because with れる you know it is rare for it to be like this. You aren't doing it, but it just happens on occasion (rarely) so you take advantage of it.
When everything is in disorder it's finally your chance! You run to the bar, break the windows, and grab all the mead (みだ) you can carry.
生理前はいつもPMSでメンタルが乱れるんです。
I always have PMS and mental disturbances before my period.
最近、食生活が乱れがちなんですよね。
Lately, my diet tends to be a bit disordered.
強風でヘアスタイルが乱れてしまった。
Strong winds have disrupted my hairstyle.