Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
unsectarian is an adjective meaning "not restricted to one sect or school or party". It carries one recorded sense.
not restricted to one sect or school or party
“religious training in a nonsectarian atmosphere”
“nonsectarian colleges”
“a wide and unsectarian interest in religion”
Definitions, synonyms and semantic relations for unsectarian come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.