Synonyms of knucklehead
- 1 Syllable
- dolt, chump, bust, schnook, fool, oaf
- 2 Syllables
- blockhead, tomfool, beefhead, noodle, numskull, screwball, halfwit, dunce, ninny, idiot, jackass, hardhead, dummkopf, moron
- 3 Syllables
- bonehead, simpleton, nincompoop, harebrain