Uncouth a. : Unknown.

Uncouth a. : Uncommon; rare; exquisite; elegant.

Uncouth a. : Unfamiliar; strange; hence, mysterious; dreadful; also, odd; awkward; boorish; as, uncouth manners.

Example:
Are Black people too Uncouth to understand the benefit of constructive criticism?

Taxonomy
Merriam-Webster Online Dictionary, Dictionary, couth, webster, Old English, Word Games, appearance, Webster Online Dictionary with audio pronunciations, Middle English, glossary, english, language, ESL, küth, adjective, Etymology, Old High German, kund.

Defination from the web:
uncouth from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... appearance : outlandish b : lacking in polish and grace : rugged <uncouth verse> c : awkward and uncultivated in appearance, manner, or behavior : rude ...