sluggish

(s) moving slowly
- a sluggish stream
sulky,
(s) (of business) not active or brisk
- business is dull (or slow)
- a sluggish market
slow, dull,
(s) slow and apathetic
- she was fat and inert
- a sluggish worker
- a mind grown torpid in old age
torpid, inert, soggy,

sulky slow dull torpid inert soggy

sluggishly sluggishness