disparate

(chiefly in the plural) Any of a group of unequal or dissimilar things.

Composed of inherently different or distinct elements; incongruous.

“The board of the company was decidedly disparate, with no two members from the same social or economic background.”

Essentially different; of different species, unlike but not opposed in pairs; also, less properly, utterly unlike; incapable of being compared; having no common genus.