a. inclined to waste resources or behave extravagantly; wildly immoral
Although surrounded by wild and profligate companions, she nevertheless managed to retain some sense of decency.
Sentence in Classic:
He had also a wish to establish himself in the good graces of the lady; for John was at least as licentious in his pleasures as profligate in his ambition.
We both know that he has been profligate in every sense of the word; that he has neither integrity nor honour; that he is as false and deceitful as he is insinuating.
Pride and Prejudice By Jane Austen Context