Use 'parvenu' for someone new to wealth or status but seen as trying too hard to fit in.

Social Climbing

'Parvenu' often carries a negative judgement about someone's social abilities.

Negative Tone

Understanding historical class systems will help with the connotations of 'parvenu'.

The adjective 'parvenu' might indicate others resent the new status of a person.

It can also imply someone earned their new status, regardless of judgment.

Use the adjective 'parvenu' when someone is still acclimating to their new role.