extravagant
adj.adj. spending much more money than you need to, or being more expensive and fancy than is necessary.
adj. exceeding what is reasonable or appropriate in cost, scale, or display; characterized by wasteful or excessive expenditure.
She bought an extravagant dress for the party.
The company's extravagant spending on luxury travel led to a serious budget deficit by the end of the year.
While the architecture was undeniably beautiful, many critics argued that such an extravagant monument was an insult to the impoverished citizens living in its shadow.
Inherited from Middle English extravagaunt, from Middle French extravagant and its etymon Medieval Latin extravagans, present participle of extravagor (“to wander beyond”), from Latin extra (“beyond”) + vagor (“to wander, stray”).
Often used to describe lifestyles, gifts, or claims; can be used predicatively after linking verbs like 'seem' or 'become'.