Which characteristics are not positively associated with the rapid diffusion and widespread adoption of an innovation?

The answer is "complexity".

Complexity describes the conduct of a framework or models, whose segments communicate in numerous ways and take after local rules, which means there is no sensible higher guideline to characterize the different conceivable associations. Similarly as there is no absolute definition of "intelligence", there is no such definition of "complexity"

i have to go with a for this one