Epimetheus is Pandora’s brother and Prometheus’s fellow son of Iapetus in Greek mythology.
Hesiod identifies Epimetheus and Prometheus as sons of the Titan Iapetus. Their names express a contrast: Prometheus is commonly interpreted as “forethought,” while Epimetheus means “afterthought” or “hindsight.” That contrast helps explain their different roles in the Pandora story.
Prometheus warns Epimetheus not to accept a gift from Zeus, but Epimetheus later receives Pandora into his household. Hesiod’s account therefore connects Pandora’s arrival with both brothers: Prometheus understands the danger, while Epimetheus acts without the same foresight.
The brothers belong to a wider family of figures associated with the older Titan generation. Their father Iapetus is also linked in Greek genealogy with Atlas and Menoetius. Later retellings may simplify these relationships, but Epimetheus is the specific husband and brotherly counterpart named in the ancient tradition.