unworthy

adj.无价值的；没有优点的；不值得的；不应得的

Such studies are to me unworthy ones. 这些学问对我而言不名一文。

You find me an unworthy opponent? 你认为我是一个不足道的对手?

I am unworthy of such an honor. 我不配获得这样的荣誉。

This is unworthy to be discussed. 这件事不值得讨论。