| buckram(adjective, hard, firm, solid, tense) |
| bumbling(adjective, rude, uncertain, awkward, stiff) |
| carved |
| cool(adjective, blank, aloof, unemotional, serene) |
| dim-witted |
| dry(adjective, dull, cool, boring, blank) |
| empty(adjective, dull, quiet, flat, heavy) |
| flat(adjective, dull, quiet, cold, heavy) |
| halting(rude, uncertain, awkward, hesitant, incompetent) |
| impersonal(adjective, unthinking, superficial, dutiful, sketchy) |
| indifferent(adjective, dull, quiet, cool, flat) |
| insensitive(adjective, awareness) |
| jejune |
| perfunctory(adjective, unthinking, automatic) |
| slow-witted |
| starchy(adjective, strong, hard, firm, solid) |
| stupid(adjective, dull, dead, impassive, unresponsive) |
| tedious |
| thick(adjective, hard, firm, solid, stiff) |
| torpid(adjective, awareness) |