If you do that kind of thing, it's not fair to her.とは 意味・読み方・使い方

If you do that kind of thing, it's not fair to her.

You are acting （not for, but） against your interests.

I hate it when she does that.

She is a fool for doing something like that.

You must be a fool to do such a thing.

It will be to your disadvantage to act that way.

It is not in your interest to do that.

It is not etiquette to do so.

There's no harm in trying.

Were I you, I would not do such a rude thing.

If I were you, I wouldn't do such a rude thing.

That isn't done [《主に英国で用いられる》 the done thing].

It would ill become you to do that.

Such conduct would be contrary to morality―against morality―against the laws of morality.

You are acting against your own interests.

You will be taken for an ill-mannered person if you do so.

He must be mental to do that.

You are a fool for doing something like that.

It would be against morality―contrary to the laws of morality―You would sin against morality.

It would go against my conscience to do such a thing.

It is bad manners to do that.

That's bad [not good] manners.

Doing that goes against the grain with me.

You will be taken for an ill-mannered person if you do so.

It is in bad taste to do such a thing. そや 文例.

That would be against the laws of propriety

You would sin against propriety.

Such conduct is against his own interests.

if you don't mind

You are no better than an animal to do such a thing.