This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Coarse; vulgar.

adj. Bred in a low condition of life; rude; vulgar.

adj. Bred, or like one bred, in a low condition of life; characteristic or indicative of such breeding; rude; impolite; vulgar

adj. (of persons) lacking in refinement or grace

"We put up at the big hotel opposite the railway station, and looked and behaved like a pair of lowbred South"

unrefined   

rude    impolite    vulgar    boorish   

ill-tongued    lath-and-plaster    horrid-looking    ill-bred    Mongolian    tribunitian    best-humoured    cow-house    low-minded    underbred