rigid/'rɪʤɪd/

a. (of rules, ideas, etc.) strict and difficult to change

a. （规则、想法等）死板的；苛严的：rigid rules 死板的规章制度

◇rigid methods of education 刻板的教学方法

音组-id/-ɪd/

acid; liquid; rapid; rigid; solid; stupid; valid; vivid