You searched for: “absenteeism”
absenteeism (s) (noun), absenteeisms (pl)
The habitual failure to appear or to be somewhere; especially, for work or some other regular duty: The most common causes of absenteeisms include influenza and occupationally related skin diseases.
The rates of absenteeism in the work force caused the factory to reduce production.
The explanations for a number of absenteeisms varied from headaches to injuries.