unsociable

adjective

1. not sociable; having, showing, or marked by a disinclination to friendly social relations; withdrawn.
2. lacking or preventing social relationships: an unsociable boardinghouse.

adjective

1. (of a person) disinclined to associate or fraternize with others
2. unconducive to social intercoursean unsociable neighbourhood

adj.c.1600, from un- (1) “not” + sociable.