a person, team, country, etc. that is thought to be in a weaker position than others and therefore not likely to be successful, win a competition, etc. 处于劣势的人(或团队、国家等);弱者;比赛前不被看好者 Before the game we were definitely the underdogs. 我们在赛前绝对不被看好。 In politics, he was a champion of the underdog (= always fought for the rights of weaker people). 在政治上,他总是为弱势群体争取权益。