negligent
adjective uk/ˈneɡ.lɪ.dʒənt/ us/ˈneɡ.lə.dʒənt/
C2 疏忽的,失职的
not being careful or giving enough attention to people or things that are your responsibility
The judge said that the teacher had been negligent in allowing the children to swim in dangerous water. 法官说允许孩子们在危险水域游泳是教师的失职。
Synonym: remiss
Opposite: diligent