CIRCUMSCRIBES is a verb which means to draw a line around something in order to limit or define it. DELINEATES is a synonym for CIRCUMSCRIBES, meaning to describe or portray something in detail. LIMITS is another synonym for CIRCUMSCRIBES, meaning to set boundaries or restrictions. Therefore, CIRCUMSCRIBES can be defined as drawing a line around something in order to limit or define it, describing or portraying something in detail, or setting boundaries or restrictions.