Which symptom would suggest an individual is experiencing lethargy and possible depressant use?

The indication that an individual is experiencing lethargy and possible depressant use is most clearly suggested by the symptom of sluggishness. Sluggishness typically encompasses a general sense of fatigue and a decreased level of physical or mental activity, which aligns with how depressants can impact the central nervous system. They often result in decreased alertness and diminished energy levels, leading to this feeling of being slow or lethargic.

Droopy eyelids can also imply sedation, but it is a more specific physical manifestation and does not convey the broader experience of overall sluggishness. Uncoordinated movements and depressed reflexes certainly can suggest impairment, but they do not specifically denote the lethargy associated with depressant use as strongly as sluggishness does.