Prodigal

1. wastefully extravagant.
2. (often followed by of or with) someone yielding profusely, lavish
3. profuse, lavishly abundant
4. (by allusion to the Biblical parable of the prodigal son) returning after abandoning a person, group, or ideal, especially for selfish reasons; being a prodigal son.

Antonyms

• (a prodigal person): frugal