But the inquiry is running into what could prove to be insuperable barriers of politics, and even emotion.

There seemed to be some insuperable barrier between us, though what it was I could not imagine.

But my papers, stating that I had been cured, presented an insuperable barrier.

You may well consider that this is an insuperable barrier for any team, but not so, because the opposition also have several disadvantages to contend with.

Each one of the following would in itself be almost an insuperable barrier to having the real issues of the case examined.

I have yet to find an insuperable barrier, though there were more problems than I at first expected.

Immediately upon her arrival in Spain, She will take the veil, and place an insuperable barrier to your union.

They share a mutual passion, but the enormous gap between their social positions is an insuperable barrier.

I had hit upon the kernel of the idea, but the implementation loomed like an insuperable barrier.