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

2. what occurs when you have feelings for someone that are so extreme, and you describe them, but the other person doesn't feel the same way... at all.
mitch is having delusions of grandeur about ange again.
by domokun December 11, 2004
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thinking that because you are gay you are extremely hot
That boy posing at the bar has gaylusions of grandeur.
by jaime-josé July 6, 2009
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The idea of being superior to other people.
His showed his grandeur complex when he said 'I'm better than you, bunch of pitiful ignorants.'
by Forastero March 30, 2006
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Illusions of grandeur - schizophrenic

Delusions of grandeur - crystal meth addicted
(Soliloquy to self) I'm enormously proud of that lecture I produced at the friar's club last evening. My delusions of grandeur had kicked in just in time for the thing to roll right off my tongue with such ease, power, effectiveness.

2) (social workers comparing notes) - "the boy ain't schizophrenic. He high on crystal, caught up in his own delusions of grandeur and shit.
by #antonio October 29, 2018
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An Illusion is the state of being deceived. Grandeur is the quality of being impressive or awesome. Therefore, someone who has Illusions of grandeur is deceiving themselves into thinking they are impressive or awesome in some way. In reality, no one else sees them in this way.
Ann Weiss thought she knew what she was talking about - like she was some authority on English or something - but in reality, she was having illusions of grandeur.
by ProphetJoe November 30, 2011
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Stop. There is no such thing of having Illusions of Grandeur, because an Illusion means that you're seeing something that is actually real, but is such that is easily misinterpreted (like any numerous optical illusions- Think of looking at a mirror that makes you look super tall at a circus or fair)

Delusions of Grandeur however is when a person believes something that isn't true, and is usually grand... like them being the savior of the world, a secret agent, or a successful business man or woman, etc.
Suzy goes on and on at school about how she's secretly dating British Royalty on the side.. and how the Prince wants to marry her, but she's not sure if she could handle all the attention and she balks at having to put on airs, do charity work, and all the other pretentious crap that would go along with being the wife of a prince. Suzy would be having Delusions of Grandeur NOT Illusions of Grandeur.
by ann weiss November 3, 2010
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He’s makin big moves & bought a new whip, gutter grandeur just beams from the cherry red leather interior
by Adolph Leery March 29, 2020
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