The phrase "grandiose vision" refers to an ambitious and highly elaborate plan or idea. It represents a grand, extravagant, or exaggerated concept that aims to bring significant change or achieve great results. Full definition
Yet the movie also lauds them as a new strain of robber barons — or «pirates,» as the case may be — that triumph because of their single - minded and grandiose visions of the future. (salon.com)
Business plans often detract from grandiose visions because they are inherently formulaic. (entrepreneur.com)
But there was a time when space travel kindled grandiose visions in scientists» minds, when rockets were as tall as skyscrapers and an unmanned mission seemed a failure of nerve. (discovermagazine.com)