Not sectarian; not intended or adapted to promote a sect; not characterized by any of the peculiarities or prejudices of a sect.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. not restricted to one sect or school or party
Word Usage
"The designation of the said "unsectarian" religion as the "ancient catholick" betrays the attempt to oppose this religion of "Humanity" to the Roman Catholic as the only true, genuine, and originally Catholic."