WordNet sense 1 (of many different kinds purposefully arranged but lacking any uniformity):

various

WordNet sense 2 (unlike in nature or quality or form or degree):

different

WordNet sense 3 (consisting of a haphazard assortment of different kinds (even to the point of incongruity)):

miscellaneous, mixed, motley, sundry

WordNet sense 4 (consisting of elements that are not of the same kind or nature):

heterogeneous, heterogenous