| witless(adjective, characteristic, dull, weak, simple) |
| fool(noun, adjective, person, light, simple) |
| frivolous(adjective, characteristic, slight, ability, detail) |
| daft(adjective, characteristic, weak, simple, wild) |
| pointless(adjective, characteristic, foolish, stupid, insignificant) |
| dippy(adjective, characteristic, knowledge, slang, ability) |
| imbecilic(adjective, weak, simple, knowledge, ability) |
| unreasonable(adjective, characteristic, weak, simple, wrong) |
| meaningless(adjective, characteristic, slight, foolish, stupid) |
| laughable(adjective, characteristic, amusement, ridiculous, laughableness) |
| empty-headed(adjective, characteristic, slight, ability, foolish) |
| flighty(adjective, characteristic, ability, foolish, stupid) |
| moronic(adjective, weak, simple, knowledge, ability) |
| childish(adjective, characteristic, foolish, innocent, trivial) |
| giddy(adjective, characteristic, ability, stupidity, foolishness) |
| unwise(adjective, characteristic, weak, simple, wrong) |
| idiot(noun, person, simple, fool, innocent) |
| irresponsible(adjective, characteristic, foolish, stupid, fantastic) |
| mindless(adjective, characteristic, dull, wrong, ability) |
| simple(noun, adjective, characteristic, weak, slight) |