backwardness 

英汉解释

n. 落后；迟疑；畏缩；腼腆

同义词

n. mental retardation，retardation，slowness，subnormality

参考例句

1. Ignorance and backwardness, should also not understand China's century-shame?
愚昧落后，难道还不能体会中国的百年耻辱吗？
2. Especially to has the high usability in the diagnosis technical equipment condition backwardness village work colleague.
特别对在诊断技术设备条件落后的乡村工作的同仁具有较高的实用性。
3. LOT of the wounding comparative statistics trotted out to demonstrate the backwardness of the Arabs appeared first in the Arab Human Development Report of 2002.
2002年的“阿拉伯人类发展报告”中，大量令人痛心的对比统计数据首次提供了阿拉伯人落后的证明。

英英解释

n.
  1. lack of normal development of intellectual capacities

网络释义

backwardness
智力迟钝; 落后性; 落后; 落伍;
economic backwardness
经济落后性;
eliminate poverty and backwardness
消除贫穷与落后;
general reading backwardness
普通性诵读落后;
be resigned to backwardness
甘居下游; 自甘落后;