adjective

1. general, or universal; esp., of or concerning the Christian church as a whole
2. 1. furthering or intended to further the unity or unification of Christian churches
   2. of or having to do with ecumenism

Origin of ecumenical

Late Latin oecumenicus ; from Classical Greek oikoumenikos, of or from the whole world ; from oikoumenē (gē), the inhabited (world) ; from oikein, to dwell, inhabit ; from oikos: see eco-