reprobate
From Longman Dictionary of Contemporary Englishreprobaterep‧ro‧bate /ˈreprəbeɪt/ noun [countable] formalBAD PERSON someone who behaves in an immoral way – often used humorously —reprobate adjectiveExamples from the Corpusreprobate• When fighting the good fight against such a reprobate there is no need for critics to resort to dishonesty and excess.• After all, even a hardened reprobate like myself must have some standards to adhere to.• a nasty old reprobateOrigin reprobate (1500-1600) Late Latin past participle of reprobare; → REPROVE