suíjī
謂佛之設教，一隨眾生之機也。最勝王經二曰：「隨機說法利眾生。」瑜伽釋曰：「諸經論就相隨機種種異說。」戒疏一上曰：「適化無方，隨機隱顯。」
According to capacity, capability, or opportunity, e.g. the teaching of the Buddha according with the capacity of everyone.
according to the situation; pragmatic
random
一隨機 謂佛隨眾生之機根而方便設教，利益眾生。金光明最勝王經卷二（大一六‧四一一中）：「隨機說法利群生，能斷煩惱眾苦流。」p7966