| stupid(adjective, dull, simple, mind, slow) |
| simple(adjective, ability, offensive) |
| moronic(adjective, mind, think, foolish) |
| slow(adjective, dull, simple, ability, mind) |
| fatuous(adjective, ability, planned) |
| slow-witted(adjective, ability, mind, offensive, think) |
| witless(adjective, ability, planned) |
| dim-witted(adjective, dull, simple, slow, stupid) |
| feeble-minded(adjective, ability, offensive) |
| brainless(adjective, ability, planned) |
| dumb(adjective, dull, simple, slow, stupid) |
| foolish(adjective, ability, planned) |
| thick(adjective, dull, slow, stupid) |
| weak(adjective, foolish) |
| dull(adjective, ability, offensive) |
| mindless(adjective, ability, planned) |
| senseless(adjective, ability, planned) |
| silly(adjective, ability, planned) |
| unintelligent(adjective, ability, mind, think, planned) |
| soft(adjective, ability, informal, offensive) |