Lagging behind others, especially in economic or social matters(adjective)
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Use "undeveloped" in a sentence
"This may work in undeveloped countries but the first time a USA based CEO gets a poor quality call of which we have all had lots on Skype that box will be relegated to the dustbin."
"As I said above, no real surprise – little warming out in undeveloped nature, lots of warming in a large and rapidly growing modern city."
"Because well sites are often in undeveloped highlands, these sources are often small trout streams."