delusions of grandeur

English Thesaurus

1. a delusion (common in paranoia) that you are much greater and more powerful and influential than you really are (noun.state)

hypernym	:	delusion, psychotic belief,
definition	:	(psychology) an erroneous belief that is held in the face of evidence to the contrary (noun.state)

part meronym	:	megalomania,
definition	:	a psychological state characterized by delusions of grandeur (noun.state)