| Main Entry: | |
| Part of Speech: | noun |
| Definition: | scatterbrain |
| Synonyms: | airbrain, airhead, birdbrain, dingbat, fluffhead, ninny, rattlebrain, silly person, space case |
| Main Entry: | dullard |
| Part of Speech: | noun |
| Definition: | dolt |
| Synonyms: | airhead, blockhead, boob*, dimwit, dope*, dork, dumbbell, dunce, fool, idiot, imbecile, lamebrain, lunkhead, meathead, nitwit, simpleton, stupid person |
| Main Entry: | thickhead |
| Part of Speech: | noun |
| Definition: | dullard |
| Synonyms: | airhead, blockhead, boob*, chump, clod, dimwit, dolt*, dope*, dork*, dumbbell, dummkopf, dummy*, dunce, fool, idiot, imbecile, lamebrain, lunkhead, meathead, nitwit, numskull, simpleton, stupid person |