| blind(adjective, dull, careless, indifferent, foolish) |
| insensitive(adjective, dull, hard, careless, indifferent) |
| dull(adjective, careless, thoughtless, insensitive, obtuse) |
| obtuse(adjective, hard, obscure, difficult, slow) |
| unperceptive(adjective, dull, careless, casual, thoughtless) |
| dense(adjective, dull, insensitive, simple-minded, dull-witted) |
| insensible |
| purblind(adjective, dull, obscure, difficult, careless) |
| stupid(adjective, careless, foolish, thoughtless, insensitive) |
| thick(adjective, dull, insensitive, simple-minded, dull-witted) |
| uncritical(adjective, casual, extensive, chaotic, random) |
| unfeeling(adjective, hard, indifferent, unkind, unresponsive) |
| callous(adjective, indifferent, unkind, unresponsive, heartless) |
| numb |
| opaque(adjective, dull, hard, obscure, difficult) |
| shallow(adjective, casual, extensive, chaotic, random) |
| thick-skinned(adjective, hard, indifferent, unkind, unresponsive) |
| uncomprehending(adjective, dull, careless, thoughtless, insensitive) |
| dim-witted |
| hard(adjective, obscure, difficult, indifferent, unkind) |