Simpletons, noun plural of simpleton. Synonyms in the same form.
Fool
fools, dullards, half-wits, dolts, idiots, morons, ignoramuses, dunces, ninnies, simples, naturals, asses, donkeys, jack-asses, noddies, noodles, gawks, loggerheads, halfwits, sapheads, witlings, imbeciles
Other
dumb-bells, numbskulls
All synonyms for simpleton →