indefeasible

adj.难使无效的,不能废弃的

不能废除的；无可争辩的；不可否认的

形容词

1. His belief in justice was indefeasible and unwavering.
他对公正的信念是不可动摇的。
2. The inheritance rights of the heir are indefeasible and cannot be taken away.
继承人的继承权是不可废除的，不能被剥夺。