thought·less·ness
noun/ˈθɔːtləsnəs/
/ˈθɔːtləsnəs/
[uncountable] (disapproving)- the fact of not caring about the possible effects of your words or actions on other people
粗心大意的；欠考虑的；轻率的 - I was hurt by her thoughtlessness.
我被她的轻率所伤害。
- I was hurt by her thoughtlessness.