a.

1. 浪费的；挥霍的；耗费的[（+of/with）]
   You should break up your wasteful habits.

   你应该改掉挥霍的习惯。

   He and his wife will not be wasteful of what is given them.

   他和他太太不会浪费别人给他们的东西。

2. 造成破坏的
   Let's end the wasteful competition.

   让我们停止这种有损无益的竞争吧。

   wasteful war

   破坏性战争

adj.