Synonyms for Oafish (same or very similar meaning)
WordNet sense 1 (ill-mannered and coarse and contemptible in behavior or appearance):
boorish, loutish, neanderthal, swinish, neandertalWordNet sense 2 ((used of persons and their behavior) not refined; uncouth):
unrefinedFrom the ODE community, based on WordNetadd/edit