What does the yellow suit symbolize in Tuck Everlasting?

Answer 1

He is the villain of the story and seems to be a character reminiscent of the devil. He is greedy and evil and would destroy the world for financial gain. He is deliberately nameless, because he represents all the evil of the world and his destruction by a relatively powerless group of people symbolizes the strength we all have to stand up for what is right. The yellow suit is a peculiar characteristic, no doubt implying that anyone who would destroy others for his own gain is nothing more than a coward and yellow is an appropriate color. His black hat, however, is the symbol of the "bad guy." In the end, he isn't strong enough to stand up against the goodness of the Tucks and Winnie.