| imbecile(noun, idiot, stupid person, cretin, ignorant person) |
| jackass(noun, idiot, stupid person, cretin, ignorant person) |
| jerk(noun, idiot, stupid person, cretin, ignorant person) |
| know-nothing(noun, idiot, stupid person, cretin, ignorant person) |
| knucklehead(noun, idiot, stupid person, cretin, ignorant person) |
| lamebrain(noun, idiot, stupid person, cretin, ignorant person) |
| loggerhead(noun, idiot, stupid person, cretin, ignorant person) |
| loon(noun, idiot, stupid person, cretin, ignorant person) |
| loony(noun, idiot, stupid person, cretin, ignorant person) |
| loser(noun, idiot, stupid person, cretin, ignorant person) |
| lump(noun, idiot, stupid person, cretin, ignorant person) |
| lunatic(noun, idiot, stupid person, cretin, ignorant person) |
| lunkhead(noun, idiot, stupid person, cretin, ignorant person) |
| madman(noun, idiot, stupid person, cretin, ignorant person) |
| meathead(noun, idiot, stupid person, cretin, ignorant person) |
| mome(noun, idiot, stupid person, cretin, ignorant person) |
| moron(noun, idiot, stupid person, cretin, ignorant person) |
| mug(noun, idiot, stupid person, cretin, ignorant person) |
| mutt(noun, idiot, stupid person, cretin, ignorant person) |
| natural(noun, idiot, stupid person, cretin, ignorant person) |