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Use "unadopted" in a sentence
"The council is also looking at adding the word "unadopted" to street name plates to make pedestrians and motorists aware they are entering a road of possibly poor standard."
"The local geography does not quite add up: Shrewbury Avenue is a posh unadopted road on top of the hill (which shows what an important figure a bank manager was in those days)."
"Compact fluorescent bulbs are so unloved and so widely unadopted that Congress had to resort to conventional-bulb prohibition, with incandescent bulbs getting Volsteaded come 2014."