The quality or state of being cliquey; the tendency to form exclusive groups and exclude outsiders.
From 'cliquey' (adjective) + '-ness' (noun-forming suffix). A natural formation describing the characteristic behavior of exclusive groups.
The '-ness' suffix is one of English's most reliable tools for turning adjectives into abstract nouns—it's been productive for over a thousand years and shows no signs of slowing down.
Complete word intelligence in one call. Free tier — 50 lookups/day.