If you describe someone as languid, you mean that they show little energy or interest and are very slow and casual in their movements.
例句
To his delight a familiar, tall, languid figure lowered itself down the steps of a club.看到一个熟悉的高大身影沿着俱乐部的台阶无精打采地走下来，他高兴极了。Time spent at Jumby Bay can be as energetic or as languid as you wish.来琼比湾消磨时光，动静皆宜，尽可随心所欲。
英汉词典释义
adv.
疲倦地;阴沉地;不感兴趣地;不活泼地
The men languidly put on their jackets.男人们疲倦地穿上夹克衫。