carelessness
US
UK carelessness n: (lack of attention, care)
SC 粗心 cū xīn
SC 草率 cū xīn，cǎo lǜ
SC 粗心大意 cū xīn，cū xīn dà yì
It's because of your carelessness that we have to re-do the project!
carelessness n: (lack of concern)
SC 淡漠 dàn mò
SC 冷漠 dàn mò，lěng mò
SC 漠不关心 dàn mò，mò bù guān xīn
TC 漠不關心
TC 漠不關心
Sam's carelessness was evident when he didn't bother to buy his wife a birthday present.