Often, a large group of people against her thoughtlessness.

往往会得罪一大帮的人，成为众矢之的。

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Imprudence or thoughtlessness in money matters would be unpardonable in me.

我要是在银钱问题上粗心大意，那是不可原谅的。

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I hope not so. Imprudence or thoughtlessness in money matters would be unpardonable in me.

但愿不会如此。我要是在银钱问题上粗心大意，那是不可原谅的。

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Sir William's point is that the unfairness can often be the result of ignorance or thoughtlessness, not necessarily of a deliberate act.

ECONOMIST: Debating Lawrence | The

Then, one day, the new girl was gone, and the Minotaur worried that, in a moment of thoughtlessness, he had gobbled her up.

NEWYORKER: Ziggurat

Or just pure thoughtlessness?

CENTERFORSECURITYPOLICY: Ayaan Hirsi Ali, abandoned to fanatics