Synonyms of nitwitted

1 Syllable
out, rash
2 Syllables
brutish, silly, sillier, simple, foolish, witless, moony, thoughtless, mooning, heedless, mindless, silliest
3 Syllables
forgetful, spaced-out, neglectful, senseless, idiotic, unmindful, unthinking, moronic, obtuse, careless, negligent, gratuitous, daydreaming
4 Syllables
muddleheaded, imbecilic, unaware, asinine
5 Syllables
unintelligent, inattentive