0 someone who spends a lot of money in a way that wastes it:
2 a person who wastes money, or spends more than is necessary:
3 someone who spends too much money without thinking about the results:
4 in the habit of spending too much money without thinking about the results:
His spending habits caused many critics to brand him a spendthrift.
They were not stingy but they were not spendthrifts.
Free access to additional borrowings can prove a disaster for spendthrifts.
Her father's heavy drinking and spendthrift habits shattered the family.
Retailers were suprised by how quickly spendthrift consumers turned frugal.
Spendthrift heirs live the high life thanks to their grandfather's fortunes.
Because of this threat, the incumbent spends more but the spendthrift incumbent will fail to garner votes effectively.
Be a miser with compound and complex sentences and a spendthrift with simple sentences.