Douglas Harper's Etymology Dictionary
Usage examples of "self-deluded".
They believe, because their religion makes them self-deluded, that we could not coerce them into harvesting the spices for us.
Clay actually felt a twinge of missed opportunity, here, for although he had spent his life having adventures, doing exactly what he wanted to do, and although he often felt like the dumbest guy in the room (because he'd surrounded himself with scientists), now, talking to Kona, he realized that he had never realized his full potential as a self-deluded blockhead.
All of these so-called mediums, presuming they aren't self-deluded, are simply skilled actors who have acquired a fundamental grasp of human psychology and know how to exploit it.
If Hell can wield such powers to the wizard's tune, it can corrupt a wizard's heart as well, and they have got themselves a master wizard totally on their side, self-deluded and thoroughly corrupted by Page 64 Chalker, Jack L - The River of the Dancing Gods the enemy.
In this he is much like the Baron, who is also self-deluded yet quite sincere.