| dense |
| drugged(adjective, numb) |
| flinty |
| halfhearted(adjective, mean, hard, cool, temper) |
| impolite(adjective, sharp, rough, rude, careless) |
| infamous(adjective, behavior, bad behavior, aroused negative) |
| inflexible(adjective, hard, careless, indifferent, cruel) |
| iron-hearted(adjective, bad, hard, tough, severe) |
| loutish |
| marble(adjective, bad, cold, detached, aloof) |
| mindless(adjective, indifferent, unconcerned, obtuse, unperceptive) |
| narcotic(adjective, senseless) |
| narcotized(adjective, numb) |
| rocky(adjective, inflexible, unyielding) |
| slow(adjective, dull, quiet, flat, heavy) |
| soporific(adjective, senseless) |
| soulless(adjective, hard, careless, indifferent, cruel) |
| spiritless(adjective, dull, quiet, hard, careless) |
| steeled(noun, adjective, hard, unfeeling, unsympathetic) |
| stuporous(adjective, dull, quiet, flat, heavy) |