not sociable; having, showing, or marked by a disinclination to friendly social relations; withdrawn.

lacking or preventing social relationships

an unsociable boardinghouse.

adjective

approachable , friendly , nice , sociable , social

adjective

aloof , antagonistic , brooding , cold , cool , distant , easy-going , hostile , inaccessible , inhospitable , introverted , laid-back * , nongregarious , recessive , reclusive , reserved , retiring , secretive , sensitive , shy , standoffish * , stuck-up * , timid , unapproachable , unbending , uncommunicative , uncongenial , unforthcoming , unneighborly , unsocial , uppity * , withdrawnnotes:to be antisocial is to be hostile to or disruptive of the established social order , marked by or engaging in behavior that violates accepted mores; while being unsociable means one is not disposed to seek the company of others or is reserved , antisocial , asocial , detached , discordant , inaffable , incompatible , inharmonious , insociable , isolated , moronic , morose , solitary , solitudinarian , taciturn , troglodytic , uncompanionable , unfriendly , ungenial , ungregarious , withdrawn