with no regard for law or discipline (idiom); flouting the law and disregarding all rules
in complete disorder
Definitions (粵典–words.hk)
語句
無視法律、紀律 to disregard law and discipline
兇徒竟然喺鬧市開槍打劫，真係目無法紀啊！
凶徒竟然喺闹市开枪打劫，真系目无法纪啊！
hung1 tou4 ging2 jin4 hai2 naau6 si5 hoi1 coeng1 daa2 gip3, zan1 hai6 muk6 mou4 faat3 gei2 aa3! The thug fires his gun and robs people even on the busy streets, he totally disregards law and discipline!
Definitions (Wiktionary)
phrase, idiomatic
to have no regard for the law or discipline; to flagrantly violate the law or rules