posthumous UK /ˈpɒs.t͡ʃʊ.məs/US /ˈpɑs.t͡ʃə.məs/ adjective5 •After the death of someone.The most favorable posthumous history the stay-at-home traitor can hope for is—oblivion. — 1885 •Taking place after one's own death.Artists obscure during their life often receive posthumous recognition, too late for them to enjoy. •In reference to a work, published after the author's death.His memoirs were his posthumous revenge on enemies he dared not take on alive. •In reference to a musical opus, published or initially performed after the composer's death. •Born after the death of one's father.Posthumous orphans never even knew their fathers.