| passive(adjective, dull, stupid, idle, weary) |
| pokey(adjective, dull, slow, heavy, sluggish) |
| preposterous(adjective, knowledge, ability) |
| punchy |
| rattle-brained(noun, adjective) |
| shaky(adjective, weak, thin, slow, tired) |
| slack(adjective, dull, slow, heavy, sluggish) |
| sleeping |
| sleepyhead(adjective, dull, quiet, weak, easy) |
| snoozy(adjective, dull, quiet, weak, easy) |
| soft |
| somnolent(adjective, quiet, slow, relaxed, cold) |
| stagnant(adjective, dull, slow, heavy, apathetic) |
| stunned |
| stupefied(adjective, dull, cold, high, dead) |
| supine(adjective, dull, weak, easy, slow) |
| tame(dull, weak, low, thin, depressed) |
| thick-headed(dull, unintelligent, witless) |
| tired(adjective, dull, quiet, slow, still) |
| tomfool(adjective, knowledge, ability) |