gregarious

adjective

1. (of animals) tending to form a group with others of the same species

- gregarious bird species

Similar word(s): social, social

2. (of a person) describing one who enjoys being in crowds and socializing.

- he is a gregarious person who avoids solitude

Similar word(s): social

3. (of plants) growing in groups that are close together

Similar word(s): clustered