Source : Webster's Revised Unabridged Dictionary (1913)

Neonomian \Ne`o*no"mi*an\, n. [Neo- + gr. ? law.]
   One who advocates adheres to new laws; esp. one who holds or
   believes that the gospel is a new law.

Neonomian \Ne`o*no"mi*an\, a.
   Of or pertaining to the Neonomians, or in accordance with
   their doctrines.