After the death of someone. / Taking place after one's own death. / In reference to a work, published after the author's death. / (originally) Born after the death of one's father.

After death.

The quality of being posthumous.

The ritual desecration of the body of a dead person.

plural of posthumous execution

One of the honorary titles given to royalty, nobles, and sometimes others in East Asia (China, Korea, Vietnam, and Japan) after the person's death.

plural of posthumous name