parvenu

a parvenu swaggering around at a party;

married a parvenu vulgarian;

The parvenu invited guests but they all hung off.

he concealed the details of his parvenu lifestyle.

The parvenu was much too foxy to let slip even a hint of his working-class background.

The parvenu tried to impress everyone with their newfound wealth.

She felt like a parvenu among the established elite.

The parvenu's extravagant spending habits raised eyebrows in the community.

Despite his parvenu status, he was determined to fit in with the upper class.

The parvenu's lack of sophistication was evident in social situations.

She felt like a parvenu at the fancy gala, surrounded by established socialites.

The parvenu's flashy displays of wealth only served to alienate them from their peers.

His parvenu behavior made it difficult for him to gain acceptance in exclusive circles.

The parvenu's attempts to mimic the manners of the upper class were met with ridicule.

She struggled to shed her parvenu image and be taken seriously by the established elite.

Julien was still a parvenu in this respect.

In 1870 the American steel maker was the parvenu of the trade.

A parvenu is a person of obscure origin who has gained wealth or a high position; an upstart, in other words.

America being the parvenu, most people assume that any variations between the two countries result from American innovation, to the (sometimes mock) horror of Britons.

Napoleon came from an obscure family, while Bismarck came from a family that had a long history back of it; therefore Napoleon is called the parvenu, while Bismarck is entitled the noble.