| old(adjective, characteristic, stupidity, foolishness) |
| opaque(adjective, mind, behavior, idiotism) |
| pinheaded(adjective, mind, behavior, idiotism) |
| pointless(adjective, characteristic, stupidity, foolishness) |
| preposterous(adjective, mind, behavior, idiotism) |
| puerile(adjective, characteristic, stupidity, foolishness) |
| ridiculous(adjective, characteristic, stupidity, foolishness) |
| sappy(adjective, mind, behavior, idiotism) |
| screwball(adjective, mind, behavior, idiotism) |
| sluggish(adjective, characteristic, stupidity, foolishness) |
| softheaded(adjective, mind, behavior, idiotism) |
| stupefied(adjective, characteristic, stupidity, foolishness) |
| thick-headed(adjective, characteristic, stupidity, foolishness) |
| thick-witted(adjective, mind, behavior, idiotism) |
| thoughtless(adjective, characteristic, stupidity, foolishness) |
| tomfool(adjective, mind, behavior, idiotism) |
| trivial(adjective, characteristic, stupidity, foolishness) |
| typical(adjective, characteristic, stupidity, foolishness) |
| unacademic(adjective, mind, behavior, idiotism) |
| unbrilliant(adjective, mind, behavior, idiotism) |