EMOTIONAL INSTABILITY By Nugent, Pam M.S. - April 7, 2013 The tendency to have rapid emotional change. See affective liability. EMOTIONAL INSTABILITY: "Joe sufferef from emotional instability and showed a rapid change of mood." Related Psychology Terms EMOTIONAL STABILITY PUNCTUATED EQUILIBRIUM AFFECTIVE DISORDER OPPONENT PROCESS THEORY OF ACQUIRED MOTIVATION FUTURE SHOCK MAGNOCELLULAR SYSTEM TEMPERAMENT TRAIT MOON ILLUSION SYMPATHY SEEKING EGO CONTROL Cite this page: Nugent, Pam M.S., "EMOTIONAL INSTABILITY," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/emotional-instability/ (accessed January 16, 2019).