MORALLY DEPRAVED is a term used to describe someone who has a lack of moral principles and behaves in an unethical or immoral way. EVIL, REPROBATE, and CORRUPT are all words that can be used to describe someone who is morally depraved. EVIL is a four-letter word that implies wickedness or immorality. REPROBATE is a nine-letter word that means a person who is unprincipled and immoral. CORRUPT is a seven-letter word that means someone who is dishonest and unscrupulous.