One who spends money recklessly or wastefully.(noun)
Wasteful or extravagant: spendthrift bureaucrats. (adjective)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "spendthrift" in a sentence
"Let's hope so ...... the spendthrift is bankrupting the country."
"To start with, his popular reputation as a careless spendthrift is untrue."
"I voted for McGinn and the notion that he's the fiscally responsible one and Dively's a spendthrift is moronic. sister Loura"