| narcotized |
| nebbish(adjective, dull, weak, easy, slow) |
| neglectful(adjective, dull, careless, idle, sluggish) |
| out |
| passive(adjective, dull, careless, indifferent, idle) |
| phlegmatic(adjective, dull, weak, easy, slow) |
| pining(adjective, dull, weak, easy, slow) |
| procrastinating(adjective, dull, careless, idle, sluggish) |
| quiet |
| remiss(adjective, dull, careless, idle, sluggish) |
| restful(adjective, tired, lethargic, sleepy, dazed) |
| sedated |
| shiftless(adjective, dull, careless, idle, sluggish) |
| sickly(adjective, dull, weak, easy, slow) |
| slack(adjective, dull, careless, idle, sluggish) |
| sleeping |
| slothful(adjective, dull, careless, indifferent, idle) |
| slow-moving(adjective, dull, careless, idle, sluggish) |
| slumbersome |
| soothing(noun, adjective, dull, tired, lethargic) |