When thinking of synonyms for the word "more cliquey," many words come to mind. For example, "exclusive" means that a particular group or activity is limited to a select few individuals, creating an air of inaccessibility. "Insular" suggests a group that is isolated from the outside world and has developed its own distinct set of norms and values. "Close-knit" implies a group of people who are tightly bonded and may be reluctant to let outsiders in. "Elitist" is used to describe a group that believes it is superior to others and only associates with those who are deemed worthy. All of these words convey the idea that a group is exclusive or selective in its membership.