disparateness

He was convinced Russia’s sheer size and its disparateness held it back; the best players needed to be gathered together to push each other on.

Yet for all the disparateness of his resume, "The Walk" is perhaps the work that brings it all together.

Although most literary comparisons are futile because of the disparateness of the things compared, the present one seems legitimate in the cases of Poe and Hawthorne, superficially so alike in their short-story work.