thoughtless
adj. 轻率的；欠考虑的；考虑不周的；不顾及他人的
比较级 more thoughtless
最高级 most thoughtless
例句
It astonishes me (that) he could be so thoughtless.
我真没有料到他会如此轻率。
《牛津词典》
I seem to be in evil case—and all for an innocent and thoughtless pleasantry.
我似乎陷入了不幸的境地——而这一切都是出于一种天真而轻率的玩笑。
How very thoughtless. I'll give him a piece of my mind.
太欠考虑了。我要狠狠地批评他。
《柯林斯英汉双解大词典》
