Epimetheus was the son of the Titan Iapetus who married Pandora. More relevantly as far as his name is concerned, he was the brother of Prometheus. His name thus means 'afterthought', from epi, 'after' and medos, 'plans', 'schemes', in other words he thought when it was too late, instead of planning in advance, as did his brother Prometheus (whom see). Epimetheus' big mistake was to marry Pandora; he did so in spite of the warning of his brother who saw the danger of accepting gifts from the gods.