beetleheaded blockheaded blunderheaded boneheaded brainless cabbageheaded chowderheaded chuckleheaded clodpated dumbheaded dunderheaded fatheaded foolish jolterheaded joltheaded knuckleheaded lunkheaded mindless muttonheaded numskulled pumpkin-headed sapheaded senseless silly stupidheaded unwitty weak-minded witless woodenheaded