あれはどうも適切な発言ではなかった。の英語

That was not at all an appropriate remark.

I should say that was not a very polite way to speak.

That is an obscure remark.

I don't make these kinds of proposals.

I don't make these kinds of proposals.

I'm not in a position to say anything about that.

It is a profanity―a blasphemy―to say such a thing.

It's less than honest not to mention that.

That kind of remark does not befit you.

That's just an excuse.

It is not too much to say so.

That's no excuse.

That excuse will not do.

Don't be so mean.

I can't tell you.

Don't say such pathetic things!

I didn't expect that to come from you.

Stop your nonsense.

Have you lost your sense to say so?

That goes without saying.

It would have been better if you had left it unsaid.

That's just an excuse.

Have you lost your senses to say so?

Whoever says so, it is not true.

I would not have said such a nonsense.

Whoever may say so, it is not true.

No matter who says so, it's not true.

It doesn't matter who says that, it's not true.

You ought not to say such a thing.

Whoever may say so, it is not true.