1.From the outside, its stolid grayness is more Soviet than Swiss.
2.It means something like a kind of dulled grayness or ordinariness of life.
3.The newcomer stood silent just as the children had done when they came into its grayness.
4.Everything seemed to wash together in a kind of bland, sickening grayness, and my knees buckled.
5.I try to turn my thoughts towards the spring and sunshine. But there is nothing except grayness over the surface of the deep.