A propounder of new opinions or doctrines. Obsolete.
Christian Church. Frequently in form New Light. A person holding novel religious doctrines; a revivalist; spec. a member of any of several churches…
Theology. One who adopts neologism in theology or religious matters; a rationalist. Now historical.
A person holding or proposing neologian views; a rationalist, a neologist (neologist, n. 2). Now historical.