Boorish, a.
Like a boor; clownish; uncultured; unmannerly. -- Boor"ish*ly, adv. -- Boor"ish*ness, n. Which is in truth a gross and boorish opinion. Milton.
Shades of meaning
Fernald has no entry of its own for boorish; he lists it under awkward, rustic.
He lists it without comment; the entries above explain its neighbors.