The English forms “oecumenical” and “ecumenical” are both used.
The constitutio de fide has been adopted by the Ecumenical Council, nemine contradicente.
Its claim to be ecumenical rests on its unanimous acceptance of "all the nations and all the churches of the Christian world."
Why not call an ecumenical council, appoint a commission to see to such things, and then forget the sacrilege?
It was the meeting-place of numerous ecclesiastical councils, some of them ecumenical (see below, Constantinople, Councils of).
Yet, despite its sectional character, the council came in time to be regarded as ecumenical alike in the West and in the East.
There was also a guarantee of full liberty for future conclaves and ecumenical councils.
Pio Nono was to summon an Ecumenical Council which was to be the greatest event of the century.
I wonder what th' Interurban Ixpriss Company w'u'd loike me t' be writin' thim on th' subject av 'ecumenical'?
Then commenced a deliberation, which finished up with insults and a confusion worthy of an ecumenical council of holy fathers.