DELUSION OF GRANDEUR By N., Pam M.S. - April 7, 2013 Falsely attributing one's self with great ability, importance, worth, identity or power. See megalomania. DELUSION OF GRANDEUR: "Joe had a delusion of grandeur about how important he was." Related Psychology Terms PSYCHOGENDER MEGALOMANIA UNIFORMLY MOST POWERFUL TEST (UMP TEST) UTILITY DIFFERENTIATION OF SELF POWER SOCIAL PYRAMID SENSE OF SELF SEXUAL IDENTITY SENSE OF IDENTITY Cite this page: N., Pam M.S., "DELUSION OF GRANDEUR," in PsychologyDictionary.org, April 7, 2013, https://psychologydictionary.org/delusion-of-grandeur/ (accessed April 19, 2021).