| silly(adjective, foolish, stupid, senseless, green) |
| senseless(adjective, simple, silly, foolish, stupid) |
| witless(adjective, simple, silly, foolish, stupid) |
| mindless(adjective, silly, stupid, senseless, green) |
| foolish(adjective, simple, silly, stupid, senseless) |
| simple(adjective, silly, foolish, stupid, intelligent) |
| soft-witted |
| stupid(adjective, simple, silly, foolish, crazy) |
| idiotic(adjective, simple, silly, foolish, stupid) |
| brainless(adjective, simple, silly, foolish, stupid) |
| dimwitted(adjective, silly, stupid, green, fat) |
| dumb(adjective, silly, stupid, green, fat) |
| imbecile(adjective, silly, stupid, green, fat) |
| inane(adjective, simple, silly, foolish, stupid) |
| insensate(adjective, silly, stupid, green, fat) |
| insensible |
| absurd |
| asinine(adjective, simple, silly, foolish, stupid) |
| beetleheaded |
| blockheaded |