| off(adjective, dull, slow, heavy, sluggish) |
| out of it(expression, adjective, idiom, dull, careless) |
| procrastinating(dull, idle, sluggish, lazy, inactive) |
| senseless(insensible, comatose, paralyzed, insentient) |
| slow-moving(adjective, dull, quiet, easy, slow) |
| sluggard(adjective, dull, moving, slow, heavy) |
| smooth(adjective, calm, quiet, tranquil, silent) |
| snoozy(adjective, dull, weak, easy, slow) |
| stupefied(adjective, dull, cold, weary, apathetic) |
| stuporous(adjective, dull, lethargic) |
| sullen(adjective, upset, dull, slow, heavy) |
| unbiased(adjective, detached, unconcerned, impartial, removed) |
| unchanged |
| unfeeling |
| unready(dull, idle, sluggish, inactive, lethargic) |
| unresisting(adjective, quiet, indifferent, apathetic, lifeless) |
| vegetable |
| weary(adjective, dull, weak, easy, slow) |
| wooden(adjective, dull, quiet, flat, cold) |
| abiotic |