Why was sisyphus cursed?

Answer 1

Everyone goes to the underworld in Greek, everyone.

Answer 2

Yes, but Sisyphus went to the part of Hades, called Tartarus, where bad people were punished.

He was sly and evil and used to way-lay travelers and murder them. He betrayed the secrets of the gods and chained the god of death, Thanatos, so the deceased could not reach the underworld. Hades himself intervened and Sisyphus was severely punished

Answer 2

As a punishment for his trickery, King Sisyphus was made to roll a huge boulder up a steep hill. Before he could reach the top, however, the massive stone would always roll back down, forcing him to begin again.The maddening nature of the punishment was reserved for King Sisyphus due to his hubristic belief that his cleverness surpassed that of Zeus himself. Zeus accordingly displayed his own cleverness by enchanting the boulder into rolling away from King Sisyphus before he reached the top which ended up consigning Sisyphus to an eternity of useless efforts and unending frustration. Thus it came to pass that pointless or interminable activities are sometimes described as Sisyphean.