Part-time Worker - (adjective + noun)
A 1997 directive defines part-time work as involving employees ‘whose normal hours of work, calculated on a weekly basis or on average over a period of employment of up to one year, are less than the normal hours of work of a comparable full-time worker’.
Source: Adapted from EurWork
Example of Use: There has been an increase in involuntary part-time work. This means that a lot of people who have part-time work would like full-time work