Gregarious
gre?gar?i?ous [gri-gair-ee-uhs]
–adjective
1: tending to form a group with others of the same kind; "Gregarious bird species"; "man is a Gregarious animal" [ant: unGregarious]
2: seeking and enjoying the company of others; "a Gregarious person who avoids solitude"
[Origin: 1660–70; [LATIN Gregarius, belonging to a flock, from Grex, equiv. to Greg-, flock + -arius -arious. See ger- in Indo-European Roots.]
—Synonyms 1. social, genial, outgoing, convivial, companionable, friendly, extroverted.a