1.  oecumenical(s = adj.all) ecumenic, ecumenical, oecumenic - concerned with promoting unity among churches or religions; "ecumenical thinking"; "ecumenical activities"; "the ecumenical movement"
Derived form noun oecumenism₁

2.  oecumenical(s = adj.all) cosmopolitan, ecumenical, general, universal, world-wide, worldwide - of worldwide scope or applicability; "an issue of cosmopolitan import"; "the shrewdest political and ecumenical comment of our time"; "universal experience"

N  generality, generalization, universality, catholicity, catholicism, miscellany, miscellaneousness, dragnet, common run, worldwideness, everyone, everybody, all hands, all the world and his wife, anybody, N or M, all sorts, prevalence, run, general, generic, collective, broad, comprehensive, sweeping, encyclopedical, widespread, universal, catholic, catholical, common, worldwide, ecumenical, oecumenical, transcendental, prevalent, prevailing, rife, epidemic, besetting, all over, covered with, Pan-American, Anglican, Pan-Hellenic, Pan-Germanic, slavic, panharmonic, every, all, unspecified, impersonal, customary, whatever, whatsoever, to a man, one and all, generally, always, for better for worse, in general, generally speaking, speaking generally, for the most part, in the long run.