This plan can hardly be improved upon.とは 意味・読み方・使い方

This plan is impossible to accomplish.

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

There are a lot of maybes in this project.

If anything goes wrong, this plan may not be feasible.

It would be difficult for the project to materialize.

That is not a good plan.

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

I'm not happy about [with] the plan.

There is an impossibility in this plan.

It's just a sketch of the plan.

It's too late to draw back from the plan.

This project may not pay off.

Practically, the plan didn't work well.

As things are [stand], the scheme is doomed to failure.

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

an inoperable plan

This plan might work.

This project admits of improvement.

It is hard to carry out this plan.

a fantastic plan

This plan can hardly be improved upon.

There's much room for improvement in this project.

an impracticable scheme

an unrealizable plan

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

There is little merit in this plan.

There is no need to have any ideological improvement plan.

This plan doesn't have any chance at all [whatsoever] of success.

I don't see why this plan isn't working well.

This project still leaves much to be desired.