The word "most depraving" suggests something that is morally corrupt or wicked. The antonym for such a word would be something that is pure, wholesome, or virtuous. Words such as upright, decent, honorable, and ethical come to mind. Alternatively, the word "inspiring" is another antonym for depraving. It conveys the idea of something that uplifts or motivates, and it reflects positive values and ideas. Other antonyms might include noble, righteous, praiseworthy, and commendable. These are all words that convey a sense of goodness and positivity, which are the opposite of depravity and moral corruption.