exclusiveness vs clannishness

exclusiveness and clannishness both are nouns.

Word	Noun	Adjective	Verb	Adverb
exclusiveness	Yes	No	No	No
clannishness	Yes	No	No	No

As nouns, exclusiveness and clannishness are synonyms defined as:

exclusiveness and clannishness: tendency to associate with only a select group

Other synonyms of exclusiveness include cliquishness.

exclusiveness (noun)	clannishness (noun)
tendency to associate with only a select group	tendency to associate with only a select group