Characteristic of someone who has risen economically or socially but lacks the social skills appropriate for this new position
English: nouveau-riche, parvenu, parvenue, upstart(a)
parvenuEnglish
parvenu, nouveau-riche, parvenue, arriviste, upstart
Adjective
Of or characteristic of a parvenu
English: parvenu, parvenue
Noun
A person who has suddenly risen to a higher economic status but has not gained social acceptance of others in that class
English: upstart, parvenu, nouveau-riche, arriviste