Synonyms of airhead

1 Syllable
dolt, chump, boob, dope, ditz, clod, fool, dork
2 Syllables
blockhead, dummy, meathead, dullard, dumdums, dimwit, lunkhead, numskull, dumbbell, thickhead, dunce, idiot, dummkopf, nitwit
3 Syllables
simpleton, rattlebrain, lamebrain, clodpate
4 Syllables
imbecile