Unsociable refers to a person who is not inclined to interact or socialize with others. Some of the antonyms for unsociable are friendly, sociable, gregarious, outgoing and amiable. A friendly person is someone who is naturally warm and approachable, while a sociable person enjoys engaging in social activities with others. Being gregarious refers to enjoying the company of other people and actively seeking out social situations. Outgoing people are typically confident, extroverted individuals who enjoy socializing with others. Finally, amiable people are pleasant to be around and enjoy forming connections with others. All of these antonyms for unsociable can help to describe individuals who are naturally social and outgoing.