WordNet
impossible action
n. an alternative that is not available [syn: impossibility]
Usage examples of "impossible action".
Not the Fleet, for the impossible action had destroyed forever that which had been the Fleet.
When this impossible action was not done, he charged them all with willful defiance of orders, crowded them into the houses and burned the village down, leaving not one person alive.
Surprise at the impossible action he had just witnessed, relief that he and Kira had not been attacked.