1. An area or region that lacks formal organization, clear boundaries, or defined rules and regulations
The unstructured zone of the city's downtown allowed for creative businesses to flourish.
A zona não estruturada do centro da cidade permitiu que negócios criativos florescissem.
2. In urban planning or geography, a space without predetermined layout or administrative organization
Urban planners decided to convert the unstructured zone into a regulated commercial district.
Os urbanistas decidiram converter a zona não estruturada em um distrito comercial regulamentado.