without forethought

常見例句

The headstrong impetuous man rushed into things without forethought.
這個頑固的莽漢，不預(yù)先考慮，倉促行事。
《新英漢大辤典》
It is not best or necessary for a young person to associate with "Tom, Dick and Henry" without forethought or purpose.
青年人最好不要，也不必不經(jīng)過事先考慮或帶著一定目的就跟張三、李四、王五交往。
fyp0022.blog.163.com
It is not best or necessary for a young person to associate with “Tom, Dick, and Harry” without forethought or purpose.
對於年輕人，漫無目的與“湯姆、迪尅、哈裡”之類的朋友聯(lián)系不是最好也不是必須的。

But Mr Bush's barging into Iraq without adequate forethought has resulted in a debacle.
ECONOMIST: America and Iraq