Showing excessive devotion to one's own region, nation, party etc.; partisan.(adjective)
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Use "particularist" in a sentence
"But there is no reason to anticipate a speedy breakdown of what one may call particularist religion and the substitution therefor of a faith built up out of many diverse elements and held in common by widely separated tempers."
"Even as a Leftist Bob Dylan was a particularist, which is the first and most vital step in patriotism."
""particularist" fiction -- the fiction that derives its special zest from the "colours" of some form of life unfamiliar to those who have not actually lived it."