Unregulated expansion, unconstrained progress, spontaneous growth, unchecked expansion, unbridled development, rampant advancement, unfettered evolution, uncontained proliferation, unbounded expansion, unhampered growth, unrestrained urbanization, excessive construction, uncontrolled urban sprawl, runaway development, unmanaged expansion, haphazard progress, reckless growth, unregulated proliferation, and uncurbed advancement can be used as synonyms for the term "uncontrolled development." These words can be used to describe the unfavorable and uncontrolled growth of a city, area, or community without proper planning and management, which can have serious consequences for the environment, health, and quality of life of its residents.