sluggish
Definitions
Moving or reacting more slowly than normal.
Lacking energy or alertness; lethargic.
Operating or responding at a slower than expected rate.
Examples
The economy has been sluggish for the past few months, showing very little growth.
After a heavy lunch, I felt quite sluggish and struggled to focus on my afternoon tasks.
The sluggish pace of the traffic made us late for our important meeting.