| sleepy(adjective, dull, quiet, low, slow) |
| phlegmatic(adjective, calm, dull, quiet, weak) |
| slack(adjective, dull, quiet, increase, flat) |
| lifeless(adjective, calm, dull, quiet, gentle) |
| lackadaisical(adjective, dull, quiet, weak, easy) |
| passive(adjective, calm, dull, quiet, gentle) |
| leisurely(adjective, adverb, dull, quiet, weak) |
| drowsy(adjective, dull, quiet, easy, slow) |
| stagnant(adjective, calm, dull, quiet, moderate) |
| dormant(adjective, calm, dull, quiet, gentle) |
| indifferent(adjective, calm, dull, weak, easy) |
| supine(adjective, dull, quiet, weak, easy) |
| tardy(adjective, adverb, dull, quiet, low) |
| weary(adjective, dull, weak, easy, slow) |
| comatose(adjective, dull, quiet, weak, easy) |
| dilatory(adjective, adverb, dull, quiet, moderate) |
| heavy(adjective, dull, quiet, weak, easy) |
| dopey(adjective, action, dull, quiet, weak) |
| laggard(adjective, adverb, dull, quiet, slow) |
| somnolent(adjective, dull, quiet, slow, careless) |