adjective
- failing to fulfill one’s duties or obligations; not showing proper respect or obedience
Usage: formal
Examples
- The undutiful son rarely visited his elderly parents.
- She was criticized for being an undutiful employee who missed deadlines.
- The king punished his undutiful subjects who refused to pay taxes.
- His undutiful behavior toward his mentor disappointed everyone.
- The undutiful student ignored her teacher’s instructions.
- They considered it undutiful to abandon family traditions.