adj.不可靠的；靠不住的；不可信赖的
As for ordinary pleasure, it's undependable. 而平常的快意，是不可靠的。
Would you like to have an undependable person as one of your best friends? 你愿意和一个不可靠的人做好朋友吗？
He says projects designed to increase interpersonal trust can have a major effect in poor countries with undependable legal systems. 他说在一些法律体系靠不住的欠发达的国家里，一些旨在促进人们之间相互信任的方案会起到主要的效果。
