noun / adjective
workaholic
werk-uh-HAH-lik/ˌwɜːrkəˈhɑːlɪk/
A person compulsively devoted to work, or characteristic of such a person.
The workaholic keeps typing late into the night beside an untouched meal.

Etymology
The ending -aholic was extracted from alcoholic, making work the object of an addiction. The comparison describes compulsive excess, rather than simply diligence or long hours.
In context
you're a workaholic and you you work 12 18 hours a day every single day
More examples
- Even on weekends, these workaholics struggle to stop working.
- Her workaholic habits leave little time for friends.
- As a workaholic, I feel guilty whenever I take breaks.
Forms
workaholic · workaholics
workaholism noun — Compulsive devotion to work at personal expense.
Similar words
- driven
- Emphasizes strong motivation to succeed, not necessarily compulsive work.
- industrious
- Emphasizes diligence and productivity rather than inability to stop working.