不规则 Traditional form: 不規則 Pinyin (reading): bùguīzé Definitions: irregular Characters: 不 - no, not, un-; negative prefix 规 - rules, regulations, customs, law 则 - rule, law, regulation; grades Traditional characters: 不 - no, not, un-; negative prefix 規 - rules, regulations, customs, law 則 - rule, law, regulation; grades