A zero doesn't grasp the situation at all, and probably issues an order.

John still refuses to sell his land, not quite grasping the situation.

Before I could grasp the situation, or act, he had walked right into the trap.

There's a lot to be said for never quite grasping the situation.

As a new member, I was unable to grasp the situation and took the data to the chairman of my committee.

Sam called to him to stop, but the boy's mind was slow to grasp the situation.

The Prince was first to grasp the situation and lead the retreat.

For what seemed a long time he did not grasp the situation.

Cairo Jackson grasped the situation before the others could speak.

For such an intelligent man, he didn't seem to be grasping the situation very quickly.