moving or operating more slowly than usual and with less energy or power

A heavy lunch makes me sluggish in the afternoon. 丰盛的午餐使我一下午都懒得动弹。

Something is wrong with the car - the engine feels sluggish. 这辆车出了问题——引擎运转不太顺畅。

The housing market has been very sluggish these past few years. 过去这几年房地产市场一直很萧条。