interdenominational
/ˌɪntərdɪˌnɑːmɪˈneɪʃənəl/
adjective
- Involving or representing different religious denominations or groups.
- The charity works on an interdenominational basis, helping people of all faiths.
- They organized an interdenominational choir for the community festival.
- The interdenominational service brought together Christians from many different churches.
Antonyms