In Greek mythology, Epimetheus was Pandora’s husband or companion when she received the container. His name is often interpreted as “afterthought,” contrasting with his brother Prometheus, whose name suggests forethought.
Prometheus warns Epimetheus not to accept gifts from Zeus, but Epimetheus accepts Pandora when she arrives. The warning matters because Zeus has sent Pandora in connection with punishment for Prometheus’ theft of fire. Pandora later opens the vessel while living with Epimetheus.
Epimetheus is sometimes confused with Prometheus because both belong to the same Titan family and both appear in the surrounding myth. They are brothers, not alternate names for one character. The contrast between their names became a memorable moral pattern: Prometheus thinks ahead, while Epimetheus understands consequences only afterward.