NSW Selective & Scholarship
Negligent
adjective/NEG-li-junt/
Careless and failing to take proper care of something.
In contextIt was negligent of him to forget his homework three days in a row.
Remember it
Negligent hides 'neglect' — a negligent person neglects to be careful.
Use it well
Use for careless failure to do a duty, often with serious results.