Synonyms of fools

1 Syllable
twit, dolt, twerp, boob, dope, ass, loon, clown, clod, bore, jerk, nerd, oaf, sap
2 Syllables
blockhead, silly, dimwit, birdbrain, cretin, turkey, numskull, fathead, lightweight, halfwit, victim, stooge, dunce, sucker, idiot, buffoon, goose, ninny, schlemiel, moron, nitwit
3 Syllables
bonehead, innocent, simpleton, dunderhead, nincompoop, lamebrain
4 Syllables
ignoramus, imbecile
5 Syllables
illiterate