Synonyms for Ecumenical (same or very similar meaning)
WordNet sense 1 (concerned with promoting unity among churches or religions):
ecumenic, oecumenic, oecumenical
WordNet sense 2 (not restricted to one sect or school or party):
nonsectarian, unsectarian
WordNet sense 3 (of worldwide scope or applicability):
cosmopolitan, general, universal, worldwide
WordNet sense 4 (including all or everything):
comprehensive
From the ODE community, based on WordNet
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