无虑用英语怎么说

无虑的英文：
carelessness

great forethought foresight;Far-sightedness
深谋无虑

May well run into hundreds
无虑数百

They feel secure that they will not be ridiculed or derided, and their confidences will be honored
他们不会被戏弄和嘲笑，因而心里踏实无虑，他们之间这种信任会受到人们的尊敬。

The text was corrupted by careless copyists.
原文因抄写者粗心而有讹误。

He is a careless beggar.
他是个粗心的家伙。

He is a careless profligate.
他是个粗枝大叶的浪荡子。

The accident originated from carelessness.
这意外事件是由于粗心而引起的。

The accident was credited to carelessness on the part of the driver.
这起事故是由于驾车人不小心引起的。