It means to be careless.
From the novel "Officialdom Appears" by Li Boyuan, a writer in the late Qing Dynasty: "The letter vaguely accuses him of doing things, helping his boss and not vindicating the people."
Interpretation: In the letter, I secretly accused him of doing things carelessly, only facing the superiors and not complaining about the grievances of the people at all.
Conceit means thinking you are great.
From Si Kongtu's Poems with Li Sheng in the Tang Dynasty: "Foolish teenagers are often conceited, but they are tired after a long time."
Interpretation: When I was young, I was often very conceited. After a long time, I feel more and more that I am missing something.
Extended data:
Zeng Guofan is a famous person in history who doesn't like conceit.
After Daoguang's death, Xianfeng acceded to the throne and ordered him to "seek words". Zeng Guofan thought that Emperor Xianfeng was a wise master, so he made a memorial, saying that Beijing officials were timid and obscene. It is perfunctory and awkward to scold foreign officials. Although this memorial did not cause disaster, it left a very bad impression on Xianfeng. When the Taiping Heavenly Kingdom Movement broke out in the first year of Xianfeng, Zeng Guofan went straight to the sky and pointed out Xianfeng's three shortcomings: seeing the small but not the big, unrealistic and headstrong.
Zeng's Xiangxiang Literature also retains the specific records of Zeng Guofan's lover. For example, looking at a person's face, Zeng Guofan would say what kind of face is a new type. People often say that you can't associate with people because such people don't make sense. Zeng Guofan's heart also has the saying that "eight friends and nine friends don't make friends", saying that such people should be avoided as much as possible. A man's face is "fast but big and lifeless", that is, his face is big and lifeless.
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