set·back /ˈsetbæk/ n. 1. 挫折;倒退;失败 suffer (或 receive, meet with) a setback 遭到挫折 a military setback 军事上的挫折 a setback in one's business 商业上的挫折 The patient had a setback in his recovery. 病人在康复过程中病情又有了反复。 The team has won 5 games against 3 setbacks. 该队胜5局败3局。 2. 逆流;涡流 3. (恒温器温度的)自动调低 4. 【建】(墙壁上部厚度减低形成的)壁阶;〈美〉梯级形后退(高层建筑上部外墙的逐层缩进,使低处获得较多光线和空气);(梯级形后退形成的)屋顶平台 5. [set back]【美橄】(位于四分卫之后的)进攻后卫