squanderous
Squanderous is an adjective used to describe someone or something characterized by wasteful extravagance. It implies a reckless and often thoughtless dissipation of resources, particularly money or time. The term carries a negative connotation, suggesting a lack of prudence and a tendency towards unnecessary spending or a careless disregard for value.
A squanderous individual might be one who spends large sums of money on frivolous items or experiences