控え目に言ってもこれは良くない。の英語

It is not good, to say the least.

It isn't so good as it appears at first sight.

It is not too much to say so.

It is not good to tell a lie.

My work is not so bad, though I say it myself.

It is no use complaining.

It's no use complaining.

all in all, it's not so bad

It's less than honest not to mention that.

Suffice it to say that, after all, this won't do.

Suffice it to say that after all this won't do.

There is no advantage in doing that.

Everything goes wrong with me

Everything goes against me.

being useless even if one speaks

Isn't it too bad of you to pass my door without looking in?

A word of advice may not be amiss here.

Please accept what little comfort these words can give you.

There is no more disagreeable thing than this.

That's not the normal [usual] way to put it.

the state of being both unreliable and useless

That was not at all an appropriate remark.

It is not good English to say so.

Can't you think of some good plan?

I am not such a fool but can appreciate it.

There is no advantage in doing that.

I wish I could think of something to say.

It is no use trying to excuse yourself now.

Nothing feels good any more.

Give me leave to say that I am not such a flat.