他在晚会上很沉闷；沉闷的政治活动；非常沉闷、冷漠的人；无所事事的沉闷日子；这是个多么沉闷的世界呀；她的心情陷入了沉闷

• he was so dull at parties; a dull political campaign; a large dull impassive man; dull days with nothing to do; how dull and dreary the world is; fell back into one of her dull moods