tightwad
Definitions
A person who is excessively reluctant to spend money.
A stingy or miserly individual.
Examples
My uncle is such a tightwad that he refuses to turn on the heat even during the coldest winter nights.
Don't expect a generous tip from him; he is a notorious tightwad who counts every single penny.
Even though he is a millionaire, he acts like a total tightwad whenever it comes time to pay for dinner.
Synonyms
miser penny-pincher skinflint cheapskate churl scrimp hoarder
Antonyms
spendthrift prodigal philanthropist squanderer big spender generous lavish