HSK 4 · adjective
粗心
careless; thoughtless
他做事很粗心。
Tā zuòshì hěn cūxīn.
He is very careless in what he does.
他太粗心大意，常常忘记带钥匙。
Tā tài cūxīn-dàyì， chángcháng wàngjì dài yàoshi。
He is too careless and often forgets to bring his keys.
他把失败归结为自己的粗心。
Tā bǎ shībài guījié wèi zìjǐ de cūxīn。
He attributed the failure to his own carelessness.