unsocial(a = adj.all) - not seeking or given to association; being or living without companions; "the unsocial disposition to neglect one's neighbors"
Antonym: social

unsocial, adj.
1 not social; not suitable for, seeking, or conforming to society.
2 outside the normal working day (unsocial hours).
3 antisocial.

Derivative:
unsocially adv.

N  exclusion, nonadmission, omission, exception, rejection, repudiation, exile, noninclusion, preclusion, prohibition, separation, segregation, seposition, elimination, expulsion, cofferdam, excluding, exclusive, excluded, unrecounted, not included in, inadmissible, exclusive of, barring, except, with the exception of, save, bating, exclusion, seclusion, exclusion, seclusion, privacy, retirement, reclusion, recess, snugness, delitescence, rustication, rus in urbe, solitude, solitariness, isolation, loneliness, estrangement from the world, voluntary exile, aloofness, cell, hermitage, convent, sanctum sanctorum, depopulation, desertion, desolation, wilderness, howling wilderness, rotten borough, Old Sarum, exclusion, excommunication, banishment, exile, ostracism, proscription, cut, cut direct, dead cut, inhospitality, inhospitableness, dissociability, domesticity, Darby and Joan, recluse, hermit, eremite, cenobite, anchoret, anchorite, Simon Stylites, troglodyte, Timon of Athens, Santon, solitaire, ruralist, disciple of Zimmermann, closet cynic, Diogenes, outcast, Pariah, castaway, pilgarlic, wastrel, foundling, wilding, secluded, sequestered, retired, delitescent, private, bye, out of the world, out of the way, the world forgetting by the world forgot, snug, domestic, stay-at-home, unsociable, unsocial, dissocial, inhospitable, cynical, inconversable, unclubbable, sauvage, troglodytic, solitary, lonely, lonesome, isolated, single, estranged, unfrequented, uninhabitable, uninhabited, tenantless, abandoned, deserted, deserted in one's utmost need, unfriended, kithless, friendless, homeless, lorn, forlorn, desolate, unvisited, unintroduced, uninvited, unwelcome, under a cloud, left to shift for oneself, derelict, outcast, banished, noli me tangere, among them but not of them, and homeless near a thousand homes I stood, far from the madding crowd's ignoble strife, makes a solitude and calls it peace, magna civitas magna solitudo, never less alone than when alone, O sacred solitude! divine retreat!.