Backwater typically means a stagnant place or a slow-moving stream of water out of sight from the main river. Its synonyms include isolated, remote, secluded, off the beaten path, tucked away, hidden, and hard to reach. Another synonym for backwater could be "hinterland," which refers to an inland area beyond the coastal districts. Other alternatives may include "outback," "wilderness," "jungle," or "bush." All these words connote a certain degree of seclusion or isolation and are used to describe remote locations or areas that are difficult to access or off the mainstream. When used metaphorically, backwater can refer to something outdated or far removed from the latest trends or technological advancements.