In-sociable is an adjective used to describe people who are reserved, shy, or not interested in socializing with others. The antonyms, or opposites, for this word are outgoing, sociable, friendly, gregarious. Outgoing refers to people who are extroverted, confident, and enjoy meeting new people. Sociable is another term that describes someone who is affable, easy-going, and likes being around people. Friendly is a term usually associated with positive behavior when greeting or interacting with other people. Finally, gregarious is a term used to describe someone who enjoys being part of a group, whether it's at work, at a gathering, or simply hanging out with a few friends.