Tertullianist noun1 •(historical) An adherent of the teachings of early Christian theologian Tertullian (Quintus Septimius Florens Tertullianus; c.155-c.240 CE).Even Augustine's contact with the Tertullianists appears to have been slight. Could Augustine's assessment of the Tertullianists, therefore, have been inaccurate? — 2007 formsTertullianists