I realized that it was the wrong thing to say.

我意识到说这话不恰当。

《牛津词典》

Of course, that was the wrong thing to say.

当然，说这话是不太妥当的。

youdao

But I'm not so confident anymore that it's the wrong thing to say.

但我不能再肯定那是错误的。

youdao

Since that's obviously the wrong thing to say about the case, we should reject the personality view.

既然这显然是错误的，我们就应该拒绝人格理论。

耶鲁公开课 - 死亡课程节选

If he had all of that,it's not so clear to me that it would be the wrong thing to say that, by golly,this is Napoleon.

如果他都拥有这些，那我就不太确定，这么说是否错误了，天哪，这是拿破仑。

耶鲁公开课 - 死亡课程节选

You think Bentham is wrong to say the right thing to do is to add up the collective happiness?

你认为边沁是错的吗,他说正确之举就是，增加集体大众的幸福？

耶鲁公开课 - 公正课程节选

Often, she says, people worry so much about what to say to someone with a terminal illness -- or about saying the wrong thing -- that they just stay away.

CNN: 'You're going to die the way you live'

Say the wrong thing on Facebook or Twitter, and you might need to defend yourself in court.

FORBES: How High Is Your Risk Of Getting Sued?