- inert, sluggish, torpid - slow and apathetic; "she was fat and inert"; "a sluggish worker"; "a mind grown torpid in old age"
Antonym: active (indirect, via inactive)
- dormant, hibernating, torpid - in a condition of biological rest or suspended animation; "dormant buds"; "a hibernating bear"; "torpid frogs"
Antonym: awake (indirect, via asleep)