absentee
US /ˌæb.sənˈtiː/
UK /ˌæb.sənˈtiː/

1.
absent, défaillant
a person who is expected to be present at a place or event but is not
:
•
There were several absentees from the meeting.
Il y avait plusieurs absents à la réunion.
•
The teacher marked the absentee students.
L'enseignant a noté les élèves absents.