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

悪騒ぎ[warusawagi] making an excessive fuss
狂騒[kyousou] mania
胸騒ぎ[munasawagi] uneasiness
喧騒[kensou] tumult
祭騒ぎ[matsurisawagi] festivities

人騒がせ[hitosawagase] person that annoys or causes trouble
騒がしい[sawagashii] noisy
騒がす[sawagasu] to annoy
騒ぎ[sawagi] uproar
騒ぎたてる[sawagitateru] to make a fuss (outcry, uproar)