Antonyms for the term "antisocial behavior" are words that describe the opposite of this behavior. These words include "prosocial behavior," "friendly," "outgoing," "sociable," and "gregarious." Prosocial behavior refers to actions that benefit others and promote social harmony. A friendly person is approachable and warm, and they enjoy spending time with others. Outgoing people are lively and extroverted, and they thrive in social situations. Sociable describes individuals who enjoy being around others and find comfort in group settings. Lastly, a gregarious person is very social and enjoys being in large groups of people. Using these antonyms, we can see how individuals can positively contribute to their social environment by engaging in cooperative, friendly, and welcoming behaviors.