careless/'keəlɪs $ 'ker-/

a. not giving enough attention to what you are doing

a. 粗心的，漫不经心的：a careless student粗心的学生

◇[it's careless of sb to do sth] It's careless of you to leave your bag on the desk. 你真粗心，把书包忘在桌子上了。

◇[careless with sth] She is careless with spelling. 她拼写很粗心。

构词care + -less