But he did not take account of the slipperiness of the frosty, dead grass.
Their slipperiness is exhausted in the preliminary negotiations.
I was, therefore, a little apprehensive of danger from the slipperiness of the rope and the rock.
At nine the mercury was at 4° below zero, and the slipperiness was fearful.
What really is concluded is not the question, but the slipperiness ...