backwater
/ˈbækˌwɔːtər/Definitions
1. noun
A small, remote, or secluded body of water, especially one that is cut off from the main stream of a river or lake.
“The hikers had to navigate through the dense forest to reach the backwater that was home to a variety of wildlife.”
2. noun
A place or area that is neglected or overlooked, especially in a social or economic sense.
“The city’s backwater neighborhoods were struggling with poverty and lack of resources.”
3. verb
To cause or allow something to stagnate or decay, especially a place or situation.
“The lack of investment in the area caused the local economy to backwater.”