Difference between Ostentation and Ostentatiousness

OSTENTATION vs OSTENTATIOUSNESS: NOUN

A gaudy outward display
A show or spectacle.
The act of ostentating or of making an ambitious display; unnecessary show; pretentious parade; -- usually in a detractive sense.
Synonyms Show, Display, Parade, Ostentation, flourish, dash. Show is the most general word for the purposed exhibition of that which might have been kept private; as such, it includes the others. Ostentation is always bad; the others may be good in certain relations. Parade and display are more suggestive of the simple act, ostentation of the spirit: as, to make a parade of one's learning; it was ostentation that led the Pharisees to make a parade or display of their charities and prayers. Parade is a matter of vanity; ostentation, of vanity, pride, or ambition.
Ambitious display; pretentious parade; vain show; display intended to excite admiration or applause.
A sight or spectacle; show; ceremony.
Display; especially, public display.
The act or an instance of showing; an exhibition.
Pretentious display meant to impress others; pretentious showiness.
A showy outward display
Lack of elegance as a consequence of being pompous and puffed up with vanity
Pretentious or showy or vulgar display

The property or characteristic of being ostentatious.
The state or quality of being ostentatious; vain display; boastfulness; vanity; ostentation.
Lack of elegance as a consequence of being pompous and puffed up with vanity

Gaudiness, Frivolity, Pretension, Flashiness, Showiness, Conspicuous consumption, Flamboyance, Opulence, Extravagance, Splashiness, Fanfare, Pomposity, Pompousness, Pretentiousness, Ostentatiousness

Haughtiness, Conspicuous consumption, Suavity, Flamboyance, Flashiness, Garishness, Showiness, Gaudiness, Opulence, Extravagance, Splashiness, Pretentiousness, Pomposity, Pompousness, Ostentation

Vainglory, Frippery, Sumptuousness, Grandiloquence, Glitz, Grandeur, Frivolity, Pretension, Flashiness, Conspicuous consumption, Flamboyance, Opulence, Extravagance, Pompousness, Ostentatiousness

Vainglory, Superciliousness, Regality, Imperiousness, Foppery, Sumptuousness, Conspicuous consumption, Suavity, Flamboyance, Flashiness, Garishness, Opulence, Extravagance, Pompousness, Ostentation

Nevertheless, ostentation and magnificence seemed to increase in the country, while its resources were diminishing.
All of the above five points put their focus on practicality before ostentation.
His religious character was free from ostentation, but uniform, consistent, sincere, and ardent.
If for others, it is an unjustifiable expression of ostentation or seduction.
He took pleasure in giving generously, but always judiciously and without ostentation.
And observe that there was no ostentation in the course he pursued.
SYN: Ostentation, magnificence, parade, ceremony, show, display, gorgeousness, grandeur, splendor, pageantry, publicity.
SYN: Vaunting, flaunting, display, pomp, ostentation, show, pageant, procession, spectacle.
Learning to Avoid the Dangers of Ostentation, Etc.
It is not knowledge they desire but ostentation.

Without a doubt, we must embrace a certain spirit of simplicity that eschews the ostentatiousness or sumptuousness that is warned against.
The problem with this is that it gives rise to a perception of extravagance and ostentatiousness from a developing country.
Changes in currency exchange rates and high ostentatiousness which is inversely affecting the global commercial enterprise.
Perhaps this ostentatiousness obscures the real question of how deep his influence has been.