"Cliquishly" is an adverb used to describe behavior that seems exclusive or selective towards a certain group or clique, often at the expense of others. Synonyms for "cliquishly" include "exclusively," "elitist," "narrowly," "insularly," "snobbishly," and "selectively." These words indicate an attitude of superiority and a tendency to exclude individuals who don't fit in with the established group. Alternatively, words such as "inclusively," "openly," "welcomingly," "generously," and "broadly" convey a more accepting, non-judgmental attitude towards others. It's important to be mindful of our behavior towards others and strive for inclusivity and openness, instead of cliquishness.