"Posthumous orphans never even knew their fathers."
2.adjectiveAfter the death of someone
"Usage note: Posthumous awards are made when the intended recipient dies as a result of the action which merits the award. Even a short time lag between the action and the decision may cause the award to be conferred after death or there may be a longer delay such as when a review board decides to confer an award decades after a war has ended but such awards while they may be post mortem (literally, "after death") are not posthumous awards."
3.adjectiveTaking place after one's own death
"Artists obscure during their life often receive posthumous recognition, too late for them to enjoy."
4.adjectiveIn reference to a work, published after the author's death.
"His memoirs were his posthumous revenge on enemies he dared not take on alive."