Stingy : mean; ungenerous; miserly.Reckless : heedless of danger or the consequences of one's actions; rash or impetuous.Careless : not giving sufficient attention or thought to avoiding harm or errors.Spendthrift : a person who spends money in an extravagant, irresponsible way.Miserly : of or characteristic of a miser.Antonym of Stingy is Spendthrift