highly unlikely
highly improbable

Less than two months ago, the trade seemed highly unlikely.

I would, however, say the example you just gave is highly unlikely.

It would be highly unlikely to find one so early in time.

Though from what I'd seen of their parents, it seemed highly unlikely.

Any military action, then, would be highly unlikely before March.

You read things most days that seem highly unlikely to be true.

It is highly unlikely they will be in the future.

The only thing is that I see such a situation as highly unlikely.

Even if he does fall in love with one or all of you, he's highly unlikely to feel up to doing anything about it.

Some years back, we could say that this was highly unlikely.

It now seems highly unlikely that any such action will be taken by then.

At the moment, it seemed highly unlikely that he would ever see her again.

That is highly unlikely, at least in the short term.

It is highly unlikely that they will win their way.

I later called back and discovered this was highly unlikely.

At the moment, war among the major powers is highly unlikely.

It is highly unlikely that you would be happy in our time.

But there was no doubt that something highly unlikely had just happened.

It seemed highly unlikely, of course, but you had to set some rules for the game.

I would have to kill them all, and that was highly unlikely.

It's highly unlikely, of course, that anything will happen, but just in case.

Such a prospect was considered highly unlikely not long ago.

And at this range, it was highly unlikely he would miss.

Highly unlikely that anyone would realize what it was about.

Such a development is highly unlikely, but so are 18 losses in 27 games.

Even meeting a Black man in her part of town was highly improbable.

They heard highly improbable human speech where nothing of the sort should be.

But in the next few years, such a squeeze is highly improbable.

Under the circumstances it is highly improbable that they might not have heard of each other.

Yet it seemed highly improbable that he had invented the whole story.

It seems highly improbable that this can be forged in 15 months.

It all seems credible, even though we know that this story is a highly improbable one.

Did those responsible not consider such a disaster to be highly improbable?

Though not impossible, this would have been a highly improbable incident.

The number may sound highly improbable, given that a political convention only lasts for four days.

But now it was like a highly improbable fairy palace.

Indeed, even if they had known, it is highly improbable that any objection would have been raised.

"Possible for a man to scale the wall, but highly improbable that he would risk it.

He examined that thought from all angles, and decided it was highly improbable.

Till this moment, he had always thought that a highly improbable act, totally out of character.

While not technically an impossible task, it did seem to be, as time went on, highly improbable.

The play is set in "China's highly improbable past."

The Executioner lined up his shot, a highly improbable one even for him.

It was a gigantic ship of highly improbable construction and purpose.

Future military conflicts are possible in either region, but overlapping wars seem highly improbable.

The direst predictions of what will happen 12 months from now are highly improbable.

Even so, he called the prospect of a mistrial "highly improbable."

Finding work this summer in Pakistan is highly improbable.

"Such an occurrence would be highly improbable," Data said, taking things too literally as usual.

"It is highly improbable that such a team is possible, sir."