rigid
adjective uk/ˈrɪdʒ.ɪd/ us/ˈrɪdʒ.ɪd/
C2 僵硬的；固定的；不能弯曲的
stiff or fixed; not able to be bent or moved
a rigid steel and concrete structure 坚固的钢筋混凝土结构
I was rigid with (= stiff and unable to move because of) fear. 我被吓得呆若木鸡。
顽固的;不易改变的
not able to be changed or persuaded
disapproving We were disappointed that they insisted on such a rigid interpretation of the rules. 他们坚持对规则进行如此呆板僵化的解释，令我们非常失望。