thoughtless
adjective /ˈθɔːtləs/
/ˈθɔːtləs/
(disapproving)- 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 - a thoughtless remark
欠考虑的话
- It was thoughtless of him to take the car without checking first.
他不先检查一下就买下那辆车，真是太轻率了。 - It was thoughtless to spring it on you so suddenly.
突然向你提出这件事是欠考虑的。 - There could be a serious accident as a result of their thoughtless actions.
由于他们考虑不周的行为，可能会发生严重的事故。
- a thoughtless remark