after death; posthumous
Used as a noun or adverb to refer to the time after someone's death. Common in formal, legal, and news contexts.
After his death, many of his works were discovered.
After his death, many people praised his achievements.
Ideas about the afterlife differ depending on the religion.
A hundred years after his death, his paintings were reappraised.
Many people believe there is an afterlife.
The letter was discovered after her death.
死語 (also read しご) means a 'dead/obsolete word or language', not 'after death' like 死後 — the two are unrelated words that merely sound identical.
rigor mortis
Compound of 死 (death) and 後 (after).