| neutral(adjective, dull, sluggish, lifeless, lethargic) |
| out of it(expression, adjective, idiom, dull, sluggish) |
| passive(adjective, careless, indifferent, apathetic, lethargic) |
| phlegmatic(adjective, dull, weak, easy, slow) |
| pining(adjective, dull, weak, easy, slow) |
| romantic(adjective, dull, careless, relaxed, indifferent) |
| sentimental(adjective, dull, careless, relaxed, indifferent) |
| sickly(adjective, dull, weak, easy, slow) |
| sleepyhead(adjective, dull, weak, easy, slow) |
| slothful(adjective, dull, careless, relaxed, indifferent) |
| slow(adjective, dull, weak, easy, relaxed) |
| sluggish(adjective, dull, weak, easy, slow) |
| snoozy(adjective, dull, weak, easy, slow) |
| spiritless(adjective, dull, weak, easy, slow) |
| spring fever(expression, adjective, dull, careless, indifferent) |
| stupid(adjective, dull, sluggish, lifeless, lethargic) |
| supine(adjective, dull, weak, easy, slow) |
| thoughtless(adjective, dull, sluggish, lifeless, lethargic) |
| torpid(adjective, dull, weak, easy, slow) |
| unenthusiastic(adjective, dull, weak, easy, slow) |