| slow(adjective, dull, quiet, increase, weak) |
| languorous(adjective, dull, hard, weak, easy) |
| torpid(adjective, action, dull, quiet, weak) |
| inactive(adjective, action, calm, dull, quiet) |
| leaden(adjective, dull, hard, weak, easy) |
| listless(adjective, calm, dull, quiet, weak) |
| lazy(adjective, action, dull, weak, easy) |
| lethargic(adjective, action, calm, dull, quiet) |
| languid(adjective, dull, quiet, weak, easy) |
| lumpish(adjective, dull, hard, difficult, slow) |
| slothful(adjective, action, dull, quiet, easy) |
| inert(adjective, calm, dull, quiet, weak) |
| indolent(adjective, action, dull, quiet, simple) |
| dull(adjective, calm, dull, increase, weak) |
| idle(adjective, action, calm, dull, quiet) |
| plodding(adjective, hard, difficult, slow, deliberate) |
| ponderous(adjective, dull, hard, difficult, complex) |
| sad(adjective, hard, difficult, unhappy, complex) |
| stale(adjective, hard, difficult, complex) |
| apathetic(adjective, calm, dull, quiet, weak) |