Synonyms of sluggish

Adjective

1. sluggish, sulky, slow (vs. fast)

usage: moving slowly; "a sluggish stream"

2. dull, slow, sluggish, inactive (vs. active)

usage: (of business) not active or brisk; "business is dull (or slow)"; "a sluggish market"

3. inert, sluggish, soggy, torpid, inactive (vs. active)

usage: slow and apathetic; "she was fat and inert"; "a sluggish worker"; "a mind grown torpid in old age"

Definition and meaning of sluggish (Dictionary)