unrefined -
(used of persons and their behavior) not refined; uncouth; "how can a refined girl be drawn to such an unrefined man?"
refined (used of persons and their behavior) cultivated and genteel; "she was delicate and refined and unused to hardship"; "refined people with refined taste"
inelegant lacking in refinement or grace or good taste
unfastidious marked by an absence of due or proper care or attention to detail; not concerned with cleanliness; "unfastidious in her dress"
ungracious lacking charm and good taste; "an ungracious industrial city"; "this curt summary is not meant to be ungracious"; "ungracious behavior"
unpolished not carefully reworked or perfected or made smooth by polishing; "dull unpolished shoes"
agrestic (of behavior) rustic and uncouth; "the agrestic behavior of a country boy"
boorish,
loutish,
oafish,
neandertal,
neanderthal,
swinish ill-mannered and coarse and contemptible in behavior or appearance; "was boorish and insensitive"; "the loutish manners of a bully"; "her stupid oafish husband"; "aristocratic contempt for the swinish multitude"
uncouth,
rough-cut,
coarse,
vulgar,
common lacking refinement or cultivation or taste; "he had coarse manners but a first-rate mind"; "behavior that branded him as common"; "an untutored and uncouth human being"; "an uncouth soldier--a real tough guy"; "appealing to the vulgar taste for violence"; "the vulgar display of the newly rich"
crass (of persons) so unrefined as to be lacking in discrimination and sensibility
low literal meanings; being at or having a relatively small elevation or upward extension; "low ceilings"; "low clouds"; "low hills"; "the sun is low"; "low furniture"; "a low bow"
