Unsocial

[Jessica]

One who does not [attend] [social] [gatherings]

[Magaret]

(of the hours of work of a job) falling outside the normal working day and thus socially inconvenient.

[Tanya Shivari]

happening during the days of the week or hours of the day when most people do not have to work:

[PussyCat]

Causing annoyance and disapproval in others; antisocial.

[Oralee]

A [person] with no [social life]