GRANDIOSITY By Nugent, Pam M.S. - May 11, 2013 the term for an exaggerated sense of your own greatness, ability and importance. It can be a delusion of grandeur in its extreme form. GRANDIOSITY: "Grandiosity is an exaggerated sense of importance." Related Psychology Terms EGOPATHY EXPANSIVE DELUSION DELUSION PHANTOM-LOVER SYNDROME SENSE OF EQUILIBRIUM OVERVALUED IDEA SELF-HELP GROUP PROCESSES SOMATIC DELUSION NARCISSISTIC PERSONALITY DISORDER EXTRASENSORY PERCEPTION (ESP) Cite this page: Nugent, Pam M.S., "GRANDIOSITY," in PsychologyDictionary.org, May 11, 2013, https://psychologydictionary.org/grandiosity/ (accessed November 23, 2017).