一心不乱[isshinfuran] wholeheartedly
淫乱[inran] debauched
潰乱[kairan] corruption (of order, customs, etc.)
快刀乱麻[kaitouranma] solving a problem swiftly and skillfully
怪力乱神[kairyokuranshin] supernatural things

外乱[gairan] noise (interference)
狂乱[kyouran] fury
胡乱[uron] suspicious looking
混乱[konran] disorder
咲乱れる[sakimidareru] to bloom in profusion

亂暴[ranbou] rude

横暴[oubou] violence
家庭内暴力[kateinaibouryoku] household violence (esp. adolescent children towards parents)
狂暴[kyoubou] rage
自暴[jibou] despair
自暴自棄[jiboujiki] desperation

粗暴[sobou] wild
暴き出す[abakidasu] to dig up and expose a criminal matter
暴く[abaku] to disclose
暴れる[abareru] to act violently
暴れ回る[abaremawaru] to rampage