Synonyms of empty-headed

2 Syllables

scatty, silly, sillier, dingdong, skittish, goofy, ditzy, untaught, vacuous, dizzy, stupid, doltish, giddy, flighty, flightier, goofier, flightiest, brainless, vacant, silliest

3 Syllables

frivolous, light-minded, nonserious, birdbrained, dimwitted, ignorant, blockheaded, thickskulled, know-nothing, lightheaded, unschooled, inane

4 Syllables

lamebrained, loggerheaded, muddleheaded, featherbrained, addleheaded, rattlebrained, harebrained, addlepated, addlebrained, scatterbrained

5 Syllables

illiterate, unintelligent, uneducated, unreflective