But there's one serious problem, one insurmountable obstacle that I can't overcome.

That's going to provide some interesting challenges, not insurmountable, Ms Tyson-Nathan said.

However, it seems that one barrier that has proven insurmountable is gender.

Yet again South Africa have fallen at a hurdle they found insurmountable.

The gaffe caused a six-day delay in election results, but wasn't insurmountable.

When you're working like a well oiled machine, no challenge is insurmountable.

The knowledge in her breast rose as an insurmountable barrier between them.

It just means researchers have avoided hitting an insurmountable wall, for now.

Again it is a challenge that, from a distance, might seem insurmountable.

This might have been OK, were it not for two insurmountable problems.

This is not as insurmountable a task as it might first seem.

This double dilemma might seem insurmountable, but we hit upon a solution.

The objection appeared to me insurmountable, and I instantly assented to it.

And you know, sometimes that's the most insurmountable thing in the world.

He felt a sort of insurmountable longing to abandon the game altogether.

Only when your love dies can the barrier between us become insurmountable.