ECUMENICALISM
ecumenism, ecumenicism, ecumenicalism
(noun) (Christianity) the doctrine of the ecumenical movement that promotes cooperation and better understanding among different religious denominations: aimed at universal Christian unity
Source: WordNet® 3.1
Etymology
Noun
ecumenicalism (uncountable)
The belief that there should be better understanding and closer co-operation between different denominations in the Christian Church.
Usage notes
The term is sometimes used pejoratively by those who believe that a lowest common denominator approach dilutes the true Christian message.
Source: Wiktionary