impossibilist

According to allies, the Lib Dem leader "talked down" the prime minister from making impossibilist demands at the summit.

Now it's three-speed Europe. And we're left on the hard shoulder | Andrew Rawnsley 2011

This has provoked anger among some Labour veterans who spent the Eighties in vicious battles with the impossibilist left to return the party to electability.

Despite their hopes of a great revival, the left got left behind 2010

The average Socialist recruit begins as a theoretical impossibilist and develops gradually into a constructive opportunist.

Socialism As It Is A Survey of The World-Wide Revolutionary Movement William English Walling

If the Left Wing adopts impossibilist methods of campaign, I shall stand aloof, but if they push for Confiscation,

The Red Conspiracy Joseph J. Mereto

With the single exception of Ferdinand Lassalle, there was no revolutionary leader who was not an obvious impossibilist in practical politics; and Lassalle got himself killed in a romantic and quite indefensible duel after wrecking his health in a titanic oratorical campaign which convinced him that the great majority of the working classes were not ready to join him, and that the minority who were ready did not understand him.

The Perfect Wagnerite, Commentary on the Ring George Bernard Shaw 1903

A West Germany firmly shackled to this impossibilist dogma would never be able to do a deal with the Soviet Union, such as leaving Nato in return for reunification.

London Review of Books 2009

Neil Kinnock agonises again at his bad luck in having an impossibilist strike that he could not support dumped on him.

Paul Flynn - Read My Day Paul Flynn 2009