He was an army, flowing like water, parting around obstacles, impossible to destroy with any one cut.

There is a love story woven through it, which once again is an assertion of the triumph of fundamental humanity against impossible obstacles.

He ignored the truth that there is nothing sexier than overcoming apparently impossible obstacles in love.

To provide that necessity against impossible obstacles was a challenge to the four who were undertaking it.

His ability to clear seemingly impossible obstacles and pull off amazing saves has earned him the nick name "The Magician".

How could a human being burrow its way through such an impossible obstacle?

Heroes go on quests and face all sorts of really impossible obstacles before they achieve their object.

On top of the legal restrictions and the tourists, the dunes themselves were an almost impossible obstacle.

Your article makes it clear that it is not a matter of bad fortune but a quagmire of impossible obstacles to overcome each day.

Perhaps because it made him feel this way, he had thrown before the act of obtaining it an almost impossible obstacle.