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to decline (in prosperity); to become deserted; to become desolate
大型店ができて商店街は寂れた。
The shopping street became desolate after a large store opened.
かつて賑わったこの温泉街は今では寂れている。
This once-bustling hot spring town is now deserted.
若者がいなければ、この山間の村は今後さらに寂れるだろう。
If there are no young people, this mountain village will likely decline further in the future.