She was 'negligent' about sending a thank-you note. [=she neglected to send a thank-you note]
He was 'negligent' in not reporting the accident to the police.
The defendant drove 'negligently' and hit a pedestrian.
(..) He's barely opened his eyes to the world, master... Please have mercy and take him. I'll teach him to shine shoes and other things. And you are free to punish him if he's negligent. He is my only son, Mr lieutenant, master... When you were little and you were coming to us with your mom and dad... (..)1965 Forest of the Hanged