- indisposed to action or exertion; lacking in energy; lazy; indolent: a sluggish disposition.
- not acting or working with full vigor, as bodily organs: a sluggish liver.
- slow to act or respond: a sluggish car engine.
- moving slowly, or having little motion, as a stream.
- slow, as motion.
- slack, as trade, business, or sales.
- lacking energy; inactive; slow-moving
- functioning at below normal rate or level
- exhibiting poor response to stimulation
