1
carelessness in doing sth
介词 in 后接动名词，表示在某方面的粗心；该结构常用于说明失误或事故的原因。
His carelessness in checking the data led to a major error.
他在核对数据时的粗心大意导致了重大错误。
粗心大意；疏忽
先理解核心含义，再看它在真实句子里的用法。
粗心大意；疏忽
carelessness
His carelessness in checking the data led to a major error.
他在核对数据时的粗心大意导致了重大错误。
疏忽；粗心
Lack of care; the state or quality of being careless.
不细心或不费心的品质
the quality of not being careful or taking pains
未能以理性人在相同情况下会有的谨慎行事
failure to act with the prudence that a reasonable person would exercise under the same circumstances
His carelessness with the car keys meant we had to wait outside for an hour.
他对车钥匙的粗心大意让我们不得不在外面等了一个小时。
She lost her job because of carelessness in handling customer accounts.
她因为处理客户账户时粗心大意而丢了工作。
The accident was caused by carelessness, not by bad weather.
这起事故是粗心大意造成的，不是天气恶劣造成的。
介词 in 后接动名词，表示在某方面的粗心；该结构常用于说明失误或事故的原因。
His carelessness in checking the data led to a major error.
他在核对数据时的粗心大意导致了重大错误。
with 后接名词，指使用或处理某物时不谨慎。
Her carelessness with the fragile instruments damaged them beyond repair.
她对这些精密仪器的粗心大意使它们损坏得无法修复。
due to 此处作表语；carelessness 为抽象名词，前通常不加冠词。
The accident was due to carelessness on the part of the driver.
事故是由于司机的粗心大意造成的。
Not this
He is carelessness about his studies.
Use this
He is careless about his studies.
系动词 is 后应接形容词作表语，carelessness 是名词，不能直接作表语；用形容词 careless 表示“粗心的”。
Not this
Because of his careless, he failed the exam.
Use this
Because of his carelessness, he failed the exam.
because of 后接名词或名词短语，careless 是形容词，不能作介词宾语；要用名词 carelessness 表示“粗心”。
Not this
The teacher blamed him by his carelessness.
Use this
The teacher blamed him for his carelessness.
blame sb. for sth. 是固定搭配，表示“因某事责怪某人”；介词 by 表示动作执行者，不表示原因，因此应改用 for。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
十足的粗心大意
The error was due to sheer carelessness.
这个错误完全是由于粗心大意造成的。
严重疏忽
His gross carelessness cost the company thousands of dollars.
他的严重疏忽使公司损失了数千美元。
在……方面的粗心
Her carelessness in handling the data led to a major problem.
她在处理数据时的粗心导致了一个大问题。
一时的粗心
A moment of carelessness caused the accident.
一时的粗心造成了这次事故。
由于粗心
He lost his keys through carelessness.
他因粗心丢了钥匙。
他们是粗心大意的人，汤姆和黛西——他们毁掉了事物和生灵，然后退回到他们的金钱或他们那巨大的粗心大意之中，或任何让他们在一起的东西，让别人收拾他们留下的烂摊子。
Nick says this in F. Scott Fitzgerald's The Great Gatsby to condemn the wealthy couple's carelessness and reckless disregard for the harm they cause.
尼克在F·斯科特·菲茨杰拉德《了不起的盖茨比》中说了这段话，以谴责这对富有的夫妇的粗心大意以及他们对所造成的伤害的轻率漠视。
Use carelessness naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把“care”看作“关心”，“less”是“少”：关心太少，就成了粗心大意。
语域：neutral 常见场景：workplace、school、everyday conversation carelessness 是常见中性名词，表示粗心或疏忽，通常用于工作、学习和日常交流；正式写作和口语中都比较常见，没有明显的语域限制。
True rhymes: hairlessness /ˈhɛrləsnəs/ and airlessness /ˈɛrləsnəs/ have the same stressed vowel and following sounds as carelessness /ˈkɛrləsnəs/. The -lessness words below (recklessness, helplessness, thoughtlessness) share the spelling and the unstressed suffix /ləsnəs/, but do not rhyme because the stressed syllable differs (e.g. /ˈrɛk-/, /ˈhɛlp-/, /ˈθɔːt-/). Awareness is a lookalike: it contains /ˈwɛrnəs/ but only /nəs/ after the stressed vowel, and its stress falls on the second syllable, so it does not rhyme.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.