Definitions for unfrockʌnˈfrɒk
Random House Webster's College Dictionary
to deprive of ecclesiastical rank, authority, and function; depose:
an unfrocked priest.
divest of the frock; of church officials
To remove from status as a member of a clergy.
to deprive or divest or a frock; specifically, to deprive of priestly character or privilege; as, to unfrock a priest