Sectarian Definition
 sĕk-târē-ən 
    adjective
  
 Of or characteristic of a sect.
 Webster's New World 
Devoted to, or prejudiced in favor of, some sect.
 Webster's New World 
Narrow-minded; limited; parochial.
 Webster's New World 
    noun
  
 An apostate from an established church.
 Webster's New World 
A member of any religious sect.
 Webster's New World 
One characterized by bigoted adherence to a factional viewpoint.
 American Heritage 
A person who is blindly and narrow-mindedly devoted to a sect.
 Webster's New World 
A bigot.
Wiktionary 
Synonyms: 
 Antonyms: 
 Other Word Forms of Sectarian
Noun
Singular:
 sectarianPlural:
 sectariansOrigin of Sectarian
From Medieval Latin sectarius +"Ž -an
From Wiktionary
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