<p><strong>Adjective</strong></p><ul><li>unwilling or unable to associate in a normal or friendly way with other people: He's not antisocial, just shy.</li><li>antagonistic, hostile, or unfriendly toward others; menacing; threatening: an antisocial act.</li><li>opposed or detrimental to social order or the principles on which society is constituted: antisocial behavior.</li><li>Psychiatry: of or relating to a pattern of behavior in which social norms and the rights of others are persistently violated.</li></ul><p><strong>Noun</strong></p><ul><li>a person exhibiting antisocial traits.</li></ul>