BOUNDARY AMBIGUITY By N., Pam M.S. - April 7, 2013 An uncertainty of one's position in the family after a divorce or separation. See permeable family. BOUNDARY AMBIGUITY: "Joe was suffering from boundary ambiguity because he used to be the oldest child and now he was the thired oldest." Related Psychology Terms BOUNDARY AMBIGUITY BROKEN HOME BLENDED FAMILY BLENDED FAMILY UNCERTAINTY AVOIDANCE PERMEABILITY OSMOTIC PRESSURE BOUNDARY SYSTEM BROKEN HOME VESTIBULAR NERVE Cite this page: N., Pam M.S., "BOUNDARY AMBIGUITY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/boundary-ambiguity-2/ (accessed October 18, 2019).