im-,不，非，provident,有远见的，考虑将来的，节俭的。

1. I wonder he should be so improvident in a point of such common, such natural , concern!

我不相信他对于这样平平常常 、 屡见不鲜的利害关系如此缺乏先见之明!

2. We ought not to go jogging along , improvident, incompetent, waiting for something to turn up.

我们不应该不顾未来,毫无办法地凑合着过下去, 等待着新的事情发生.

3. Her improvident speech at the meeting has set a stone rolling.

她在会上的发言缺乏远见,已产生严重后果.

4. You will pay for your improvident undisciplined behavior.

你会为自己轻率任性的行为付出代价的.

5. He must bear the consequences of his improvident action will he, nill he.

不管他愿意不愿意, 他必须对自己挥霍浪费所造成的后果负责.