Synonyms of grandiose
1
: characterized by affectation of grandeur or splendor or by absurd exaggeration
They did not believe his grandiose claims.
2
: impressive because of uncommon largeness, scope, effect, or grandeur
had grandiose plans for the city
grandiosely adverb
grandioseness noun

grandiosity

2 of 2

noun

gran·​di·​os·​i·​ty
-ətē
-i
plural -es
: the quality or state of being grandiose
forgot his connubial incompetence in the grandiosities of his research projectsJ. L. Davis
feeling takes the place of comprehending, grandiosity the place of grandeur, pathos the place of understandingR. H. Pearce

Did you know?

When it comes to bigness, there’s grand and then there’s grandiose. Both words can be used to describe something impressive in size, scope, or effect, but while grand may lend its noun a bit of dignity (i.e., “we had a grand time”), grandiose often implies a whiff of pretension. The difference between a grand plan for the city park and a grandiose one, for example, might be the difference between a tasteful fountain and a garden full of topiaries cut in the shapes of 19th century literary figures. So if you’re choosing between the two, a helpful mnemonic might be that the extra letters in grandiose suggest that one’s ideas, claims, promises, schemes, dreams—you get the idea—are a bit extra.

Choose the Right Synonym for grandiose

grand, magnificent, imposing, stately, majestic, grandiose mean large and impressive.

grand adds to greatness of size the implications of handsomeness and dignity.

a grand staircase

magnificent implies an impressive largeness proportionate to scale without sacrifice of dignity or good taste.

magnificent paintings

imposing implies great size and dignity but especially stresses impressiveness.

an imposing edifice

stately may suggest poised dignity, erectness of bearing, handsomeness of proportions, ceremonious deliberation of movement.

the stately procession

majestic combines the implications of imposing and stately and usually adds a suggestion of solemn grandeur.

a majestic waterfall

grandiose implies a size or scope exceeding ordinary experience

grandiose hydroelectric projects

but is most commonly applied derogatorily to inflated pretension or absurd exaggeration.

grandiose schemes

Examples of grandiose in a Sentence

Adjective He was full of grandiose ideas. a grandiose plan to upgrade the entire interstate highway system in 10 years
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Adjective
That has not stopped Calce and his team from making grandiose claims to the public. Joshua Kaplan, ProPublica, 9 June 2026 While not quite so grandiose, Valdez says discussions are ongoing regarding the bird’s future. Ryan Steven Green, Los Angeles Times, 29 June 2026 But that grandiose plan, like others, fell through when Parker, who was estranged from her mother, claimed that her mother had blocked her inheritance. Kc Baker, PEOPLE, 12 June 2026 But Blue Origin has drawn parallels, with its multibillionaire founder (Jeff Bezos) and its own grandiose ideas. Jackie Wattles, CNN Money, 12 June 2026 See All Example Sentences for grandiose

Word History

Etymology

Adjective

French, from Italian grandioso, from grande great, from Latin grandis

Noun

French grandiosité, from Italian grandiosità, from grandioso + -ità -ity (from Latin -itat-, -itas)

First Known Use

Adjective

1818, in the meaning defined at sense 2

Time Traveler
The first known use of grandiose was in 1818

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Cite this Entry

“Grandiose.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/grandiose. Accessed 7 Jul. 2026.

Kids Definition

grandiose

adjective
1
: impressive because of uncommon largeness, scope, effect, or grandeur
2
: characterized by deliberately assumed grandeur or splendor or by absurd exaggeration
grandiose schemes
grandiosely adverb

Medical Definition

: characterized by affectation of grandeur or splendor or by absurd exaggeration
a paranoid patient with grandiose delusions
grandiosely adverb

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