the state of not being advanced, or of not using modern methods, technology, or machines

They were accused of backwardness because they had no washing machine. 他们因为没有洗衣机而被指责落后。

Local farmers won’t use donkeys because of their negative association with poverty and backwardness. 当地农民不使用驴子，因为它们与贫困和落后有负面联系。