profligate – wasteful with money or resources
(Pronounced prof-luh-guht)
To remember the definition of the word profligate, use the following mnemonic:
The professor loved his golden gutters (profligate). What a waste of money.

Examples of profligate in a sentence
Despite his fortune, his profligate nature left him penniless.
There profligate consumption of rations would limit their chances of survival.
Her usage of credit cards was profligate and irresponsible.