Rubes, noun plural of rube. Synonyms in the same form.
Yokel
hicks, bumpkins, boors, rednecks, louts, peasants, bucolics, rustics, provincials, yahoos, hayseeds, clowns, churls, yokels, chawbacons, honyocks
Other
dupes, suckers, hill-billies
All synonyms for rube →