来自point,点，目标，-less,无，没有。

1. They made it perfectly clear that it was pointless to go on.

他们非常明确地表示继续下去毫无意义。

2. The programme was bitty and pointless.

这个计划东拼西凑，毫无意义。

3. Without an audience the performance is pointless.

没有观众，表演就不成其为表演了。

4. We searched until we knew it would be pointless to continue.

我们搜索又搜索，直到觉得继续下去也枉然时才罢手。

5. He asked them all kinds of pointless questions, stalling for time.

他向他们提了各种毫无意义的问题来拖延时间.