Prodigal
Part of speech: noun
Definition: A prodigal person, a spendthrift.
Part of speech: adjective
Definition: wastefully extravagant. someone yielding profusely, lavish profuse, lavishly abundant
Example sentence: The Orpheus myth is my favorite myth, and the prodigal son is my favorite parable.
Unstinting
Part of speech: adjective
Definition: generous and tireless with one's contributions of time, money, etc.