a morally corrupt or depraved person
"You are a heartless reprobate, sir; a heartless, thankless, good-for-nothing reprobate. I have done with you. You are my son; that I cannot help but you shall have no more part or parcel in me as my child, nor I in you as your father." Anthony Trollope, Barchester Towers, 1857
"She was den mother to the city's pale-skinned night crawlers, punks, dudes pushing faux decadence and your garden-variety reprobate, and she has done it in style, with a swagger that can only be earned from experience." Brett Callwood, Detroit Metro Times, January 11, 2012
About the Word:
Reprobate comes from the Latin reprobare, meaning "to disapprove" or "to condemn." The word is frequently used in the King James Version of the Bible to describe someone who understands God's will but chooses to not follow it.