Grandiose

ˈɡrændiˌoʊs

adjective

impressive or magnificent in appearance or style, especially pretentiously so

The word 'grandiose' is often used to describe something that is overly exaggerated or pompous, giving the impression of being grand or imposing. It can be associated with ideas, plans, or presentations that are excessively showy or ambitious.

From that, in answer to my questions, he came round to his grandiose plans again.

H. G. Wells

The War of the Worlds

And the latter is really the malignant reproach that Epicurus cast upon Plato: he was annoyed by the grandiose manner, the mise-en-scène style of which Plato and his scholars were masters—of which Epicurus was not a master!

Friedrich Nietzsche

Beyond Good and Evil

Strange ships and confused dealings with the men of outer space could mean the end of the short days of peace, a return to the old grandiose times of death and battle.

Asimov, Isaac

Foundation 2 - Foundation and Empire

However, the stamp of its power is there also, and the Titanic sink of Paris realizes, among monuments, that strange ideal realized in humanity by some men like Macchiavelli, Bacon and Mirabeau, grandiose vileness.

Victor Hugo

Les Misérables

Words are man’s first and most grandiose invention.

Aldous Huxley

Crome Yellow

Just inside the park, a group of young women with babies in strollers (a gossip of mothers, Ralph thought) had been watching them, probably attracted by Lois's gestures, which had a tendency to become grandiose when she was excited.

Stephen King

Insomnia

At the same time, she had a flamethrower tongue that she would turn on people at the oddest times, usually in some grandiose, earth-scorching retaliation for a slight or breach of etiquette that none of the other freshmen had even perceived.

Neal Stephenson

Snow Crash

It was possible that he was going to be able to pull this whole grandiose ruse off, after all.

Gaiman, Neil

Neverwhere