1. in a way that shows obedience to duty or fulfills one’s obligations

Examples

• She dutifully completed all her homework before watching television.
• The soldier dutifully followed his commanding officer’s orders.
• He dutifully visited his elderly grandmother every Sunday.
• The students dutifully lined up when the teacher called for attention.
• She dutifully recorded every expense in her budget notebook.
• The employee dutifully arrived at work fifteen minutes early each day.