unpremeditated

1.unpremeditated homicide

非预谋杀人

2.it was a totally unpremeditated attack.

这完全是突然袭击。

3.All growth is a leap in the dark, a spontaneous unpremeditated act without the benefit of experience.

所有成长是一种在黑暗中跳越，一种发性非预谋没有经验益处行动。

4.asked an unpremeditated question. Something that isad-lib is spontaneous and improvised and therefore not part of a prepared script or score:

随口提出一个问题。 ad-lib 事物是发产生和即兴而作， 因而是预先准备手稿或记录部分：