adjective
also clique·ish ˈklēkish, ˈklik-, -kēsh
1. : tending toward narrow exclusiveness or to form a clique
cliquish attitudes developed among children coming from the fashionable west side
newly arrived immigrants tend to be cliquish for a while
2. : marked by a tendency to divide into cliques
ballet companies by reputation are … cliquish — Al Hine