be careless with sth
He is careless with his money.
他对钱很粗心。
不在乎的；不担心的；不放在心上的；不加考虑的；不顾的；欠考虑的；自然的；轻松的；不做作的；不关心的；不担忧的；粗心大意的；不谨慎的；缺乏注意或考虑的
making or likely to make mistakes because of not paying enough attention; not careful
不关心的；不担忧的
Not concerned or worried (about).
粗心大意的；不谨慎的；缺乏注意或考虑的
marked by lack of attention or consideration or forethought or thoroughness; not careful
不够注意或思考的；尤其指未能避免伤害或错误
Not giving sufficient attention or thought, especially concerning the avoidance of harm or mistakes.
不费力的,自然的；不做作的
effortless and unstudied
(通常后接 of)未加思考或考虑的；不经心的
(usually followed by `of') without due thought or consideration
He made a careless mistake on the math test.
他在数学考试中犯了一个粗心的错误。
用法提示：形容词“careless”修饰名词“mistake”，表示错误是由于不细心造成的。
AI contextual example
Careless driving can lead to serious accidents.
粗心驾驶可能导致严重事故。
用法提示：形容词“careless”修饰动名词“driving”，描述驾驶行为不谨慎。
AI contextual example
She is often careless about locking the door at night.
她晚上经常粗心大意不锁门。
用法提示：形容词“careless”在系表结构中作表语，后接介词短语说明在什么方面粗心。
AI contextual example
He is careless with his money.
他对钱很粗心。
about表示对...不在意。
She is careless about her appearance.
她对自己的外表很粗心。
in表示在...过程中。
He is careless in handling the documents.
他在处理文件时很粗心。
比careless更正式，常指失职或疏忽责任
强调走神或分心，语气较中性
侧重不顾及后果或他人感受
语气更强，暗示冒险行为
grammar · medium
易错句子He is very careless and enjoys life.
正确表达He is very carefree and enjoys life.
careless 意为'粗心的'，含贬义；carefree 意为'无忧无虑的'，含褒义。此处应用 carefree。
grammar · medium
易错句子He drives very careless.
正确表达He drives very carelessly.
修饰动词 drive 应使用副词 carelessly，而非形容词 careless。
表示细心、谨慎的形容词，与粗心相反
强调小心以防危险或错误
表示注意集中、仔细的
强调非常仔细、注重细节
表示全面、周到的，与粗心导致的疏漏相反
careless 指做事粗心、不细心；carefree 指心态轻松、无忧无虑。
careless 强调疏忽、不注意；reckless 强调故意冒险、鲁莽行事。
粗心的错误
He made a careless mistake on the test.
他在考试中犯了一个粗心的错误。
粗心驾驶
Careless driving can cause accidents.
粗心驾驶可能导致事故。
粗心的态度
Her careless attitude towards homework led to poor grades.
她对家庭作业的粗心态度导致了糟糕的成绩。
轻率的言论
His careless remark offended several people.
他那轻率的言论冒犯了几个人。
对…粗心
She is often careless with her belongings.
她经常对自己的物品粗心。
care (关心) + less (无)
root
care (关心) + ful (充满)
home (家) + less (无)
粗心常导致意外事故的发生。
匆忙行事容易变得粗心。
疏忽是粗心的直接结果。
粗心常造成细微的失误。
粗心可能导致短暂性的过失。
时间永远无法弥补，一位好朋友的轻率低语。
She was careless with her words and hurt her friend.
她说话不谨慎，伤害了她的朋友。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.