What term describes an area of a golf course that is not well-maintained?

The term that describes an area of a golf course that is not well-maintained is indeed "rough." In golf, the rough is the longer grass surrounding the fairway and greens. It is intentionally left less manicured than the fairways and greens, which are kept in pristine condition to provide players with optimal playing surfaces. The rough can vary in height and density and poses an increased challenge for golfers, as balls landed in this area are more difficult to play from.

The fairway is the closely mowed area between the tee box and the green, designed to provide a smooth surface for the ball to roll toward the hole. Parkland typically refers to a type of golf course layout that features trees and landscape, but does not indicate the condition of any specific area of the course. Greens are the very well-maintained areas surrounding the holes where the grass is kept to a short height to allow for smooth putting. Thus, the rough is the correct answer as it signifies those areas that are less cared for compared to other sections of the golf course.