I’m looking for an adjective to describe, for example, someone who shows disdain for elitism or fine things. Google only gives examples that have positive or neutral connotations.
EDIT: I've accept plebian since it seems to satisfy most of my criteria, although it doesn't imply a disdain for elitism.
I've noticed a lot of submitted words imply simplicity or dullness, but that's not necessarily what I'm going for.
I'd also be interested in learning a word, even if it's not an antonym, that means something like: "to show disdain or contempt for elitism or pretentiousness." Ideally it would have a negative connotation but that is not a necessary constraint.