| twit(noun, simple, fool, innocent, jerk) |
| oaf(noun, person, simple, fool, stupid) |
| dimwit(noun, person, simple, fool, stupid) |
| birdbrain(noun, simple, fool, innocent, jerk) |
| dunderhead(noun, simple, fool, innocent, jerk) |
| half-wit(noun, person, fool) |
| ninny-hammer |
| numbskull(noun, imbecile, dolt) |
| chump(noun, fool, stupid, sap, brute) |
| dim-wit |
| donkey(noun, fool, imbecile, idiot, dolt) |
| dumbbell(noun, person, fool) |
| jackass(noun, simple, ability, sport, fool) |
| sap(noun, person, simple, fool, stupid) |
| silly(noun, simple, fool, innocent, jerk) |
| simple(noun, ability) |
| boob(noun, simple, informal, fool, stupid) |
| booby(noun, fool) |
| cretin(noun, simple, slang, ability, fool) |
| goose(noun, simple, ability, informal, fool) |