1. in a way that shows lack of proper care or attention

Examples

• She neglectfully left the door unlocked when she went to work.
• The garden was neglectfully maintained and full of weeds.
• He neglectfully forgot to feed his pet fish for three days.
• The student neglectfully skipped several important chapters while studying.
• The babysitter neglectfully allowed the children to play unsupervised.
• Documents were neglectfully scattered across the messy desk.