Congregationalist congregationalism • congregationalize · · · Info · Definitions · Characters · · Congregationalist · · Text Latin · · Script 17 · · Length Definitions · · · (noun) a member of the Congregational Church. · · Noun Definition 1 (adj) of or pertaining to or characteristic of a Congregational church. Synonyms: Congregational. · · Adjective Definition 1 Characters · · C latin capital letter c U+0043 a latin small letter a U+0061 e latin small letter e U+0065 g latin small letter g U+0067 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074