Grandiose delusionsGrandiose delusions (GD), also known as delusions of grandeur or expansive delusions, are a subtype of delusion that occur in patients with a wide range of psychiatric disorders, including two-thirds of patients in a manic state of bipolar disorder, half of those with schizophrenia, patients with the grandiose subtype of delusional disorder, frequently in narcissistic personality disorder, and a substantial portion of those with substance abuse disorders.
VanityVanity is the excessive belief in one's own abilities or attractiveness to others. Prior to the 14th century, it did not have such narcissistic undertones, and merely meant futility. The related term vainglory is now often seen as an archaic synonym for vanity, but originally meant considering one's own capabilities and that God's help was not needed, i.e. unjustified boasting; although glory is now seen as having a predominantly positive meaning, the Latin term from which it derives, gloria, roughly means boasting, and was often used as a negative criticism.
Self-serving biasA self-serving bias is any cognitive or perceptual process that is distorted by the need to maintain and enhance self-esteem, or the tendency to perceive oneself in an overly favorable manner. It is the belief that individuals tend to ascribe success to their own abilities and efforts, but ascribe failure to external factors. When individuals reject the validity of negative feedback, focus on their strengths and achievements but overlook their faults and failures, or take more credit for their group's work than they give to other members, they are protecting their self-esteem from threat and injury.
ConfidenceConfidence is the state of being clear-headed: either that a hypothesis or prediction is correct, or that a chosen course of action is the best or most effective. Confidence comes from the Latin word fidere which means "to trust". In contrast, arrogance or hubris is a state of unmerited confidence—belief lacking evidence and/or a reason. Overconfidence or presumptuousness is excessive belief in success without regard for potential failure.
PridePride is defined by Merriam-Webster as "reasonable self-esteem" or "confidence and satisfaction in oneself". Oxford defines it as "the quality of having an excessively high opinion of oneself or one's own importance." This may be related to one's own abilities or achievements, positive characteristics of friends or family, or one's country. Richard Taylor defined pride as "the justified love of oneself", as opposed to false pride or narcissism. Similarly, St.