The phrase "sluggish person" is correct and usable in written English.
You can use this phrase to refer to someone who is slow or inactive, as in the following example sentence: The sluggish person was too tired to do any work.
We were all sort of suspicious about the U1's workability when we heard about it, and indeed it was rather sluggish in person — a combination of an overambitious interface, a slow processor, and an unimpressive resistive touchscreen.
After finishing up with a swipe of lipstick, I didn't feel like the sluggish, kinda dazed person I had been.
Since then programs for Windows and Windows friendly apps have gotten bigger, sloppier and as sluggish as a person who just walked away from eating a Big Mac, a Wendy's triple double and a plate of Bob Griese's favorite tacos, in need a digital angioplasty.
Galloping quarter horses top out around 47 miles per hour, while sluggish humans, in the person of the world record 100-meter sprinter Usain Bolt, have attained a top speed of less than 28 miles per hour.
The specific meanings are as follows: An head absent line indicates a person who is sluggish.
During a depressive period, all that manic energy disappears and that same person might feel sad, sluggish, or disinterested in previously enjoyable activities.
Encouraging sensitive performances that mitigate the film's sluggish pace and fuzzy narrative, Ms. Szumowska juxtaposes two-person scenes of wordless intimacy with group expressions of casual violence.
Does she tend to be a little sluggish in the morning before her cup of Joe? Expect her to become a morning person after she starts her day with this skin-softening one-two punch.
Thereby patients with non-psychotic mental disorders, or even persons who were not mentally sick, could be easily labelled with the diagnosis of sluggish schizophrenia.
But it's a rare person (I'm loathe to use the word "odd", given the context) who thinks, "my circulation is sluggish, I must get into this frozen lake".
