Parsimonious
/ˌpɑːrsɪˈmoʊniəs/ adjective hardExtremely reluctant to spend money; excessively frugal.
Despite his fortune, the parsimonious billionaire still clipped coupons for groceries.
Memory Trick
Picture someone hoarding every penny as if it were the last one in the world — that stinginess is parsimonious.