prescriptive
adjective formal mainly disapproving uk/prɪˈskrɪp.tɪv/ us/prɪˈskrɪp.tɪv/
规定的，指定的;（尤指）规范的
saying exactly what must happen, especially by giving an instruction or making a rule
Most teachers think the government's guidelines on homework are too prescriptive. 大部分教师认为政府有关家庭作业的规定太刻板了。
Compare: normative descriptive