| dopey(adjective, action, dull, slang, ability) |
| inert(adjective, dull, slow, heavy, apathetic) |
| torpid(adjective, action, dull, slow, cold) |
| heavy(adjective, dull, slow, silly, stupid) |
| languid(adjective, dull, slow, heavy, apathetic) |
| lethargic(adjective, action, dull, slow, cold) |
| sluggish(adjective, action, dull, simple, slow) |
| apathetic(adjective, dull, slow, heavy, sluggish) |
| comatose(adjective, dull, slow, cold, heavy) |
| dull(adjective, simple, slow, heavy, apathetic) |
| listless(adjective, dull, slow, heavy, apathetic) |
| slow(adjective, dull, simple, heavy, silly) |
| blah(adjective, dull, slow, informal, heavy) |
| dormant(adjective, lethargic) |
| inactive(adjective, dull, slow, heavy, apathetic) |
| indifferent(adjective, lethargic) |
| lackadaisical(adjective, lethargic) |
| languorous(adjective, dull, slow, heavy, stupid) |
| stupid(adjective, action, dull, simple, ability) |
| blunt |