| foolish(adjective, behavior, dullness, feature, characteristic) |
| dumb(adjective, mind, foolishness, behavior, disability) |
| unintelligent(adjective, mind, foolishness, behavior, disability) |
| silly(adjective, mind, behavior, idiotism, characteristic) |
| dull(adjective, mind, foolishness, behavior, disability) |
| stupid(adjective, mind, behavior, foolishness, disability) |
| senseless(adjective, mind, foolishness, behavior, disability) |
| naive(adjective, characteristic, sophisticated, stupidity, foolishness) |
| obtuse(adjective, mind, behavior, foolishness, disability) |
| goofy(adjective, characteristic, stupidity, foolishness) |
| mindless(adjective, mind, foolishness, behavior, disability) |
| fatuous(adjective, mind, foolishness, behavior, disability) |
| thick(adjective, mind, behavior, idiotism, characteristic) |
| dense(adjective, mind, foolishness, behavior, disability) |
| dim(adjective, mind, behavior, idiotism, characteristic) |
| half-baked(adjective, mind, behavior, idiotism, stupid) |
| nonsensical(adjective, mind, foolishness, behavior, disability) |
| slow(adjective, mind, foolishness, behavior, disability) |
| dopey(adjective, mind, foolishness, behavior, disability) |
| brainless(adjective, mind, foolishness, behavior, disability) |