parabaptism (?pær??bæpt?z?m) nobsolete unauthorized baptismCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014parabaptisma baptism that is in some way irregular or unauthorized. ? parabaptist, n.See also: Baptism-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.