"sluggish" in the adjective sense
1. sluggish, sulky
moving slowly
"a sluggish stream"
2. dull, slow, sluggish
of business) not active or brisk
"business is dull (or slow)"
"a sluggish market"
3. inert, sluggish, soggy, torpid
slow and apathetic
"she was fat and inert"
"a sluggish worker"
"a mind grown torpid in old age"
Source: WordNet® (An amazing lexical database of English)
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