backwater
n (usu sing 通常作单数)
1 part of a river not reached by the current, where the water does not flow 死水.
2 (fig 比喻) place that remains unaffected by events, progress, new ideas, etc 不受外界的变化、进步、新观念等影响的地方; 闭塞地区
I find this town too much of a backwater. 我觉得这个城镇太闭塞.