とても現実味のあるプランとは言えなかったな。の英語

You couldn't say that was a plan with any sense of reality to it.

The plan is very makeshift.

Little did I imagine that my plan would go wrong.

I still haven't thought of that plan.

This was quite a well thought-out plan.

The plan has broken down.

We found out that the initial plan was very difficult to realize.

Those plans won't really go as hoped.

The plan did not work well in practice.

The plan is not mature.

I'm afraid the project wouldn't pay off.

Practically, the plan didn't work well.

I couldn't help but to cancel the plan.

I don't feel that it's a very good plan.

There is little merit in this plan.

It's a great plan, innit.

Such a plan can hardly succeed.

This plan is quite unrealistic [has little to do with the realities of the world].

His plan leave much to be desired.

His plan leaves much to be desired.

It wasn't premeditated.

The plan has little appeal for [to] me.

There are a lot of maybes in this project.

nothing came of his grandiose plans

an impossible project

details of the plan remain sketchy

The plan was a masterpiece of fraud.

That is not a good plan.

The plan turned out to have had no effect.

The scheme can not have originated with a man in his right mind.