asocial

adjectives

given to avoiding association with others
"bears are asocial secretive animals"; "are you asocial or do you just enjoy living in the Antarctic?"
is similar to
not seeking or given to association; being or living without companions
"the unsocial disposition to neglect one's neighbors"
hostile to or disruptive of normal standards of social behavior
"criminal behavior or conduct that violates the rights of other individuals is antisocial"; "crimes...and other asocial behavior"; "an antisocial deed"