A child who masters the classics will stand apart from the uncouth boors on the school bus.
Sarkozy is known for running—television crews often film him, sweaty and uncouth, as he jogs in an NYPD t-shirt.
Because while calling a passerby “sexy” may be uncouth, it shouldn't be illegal.
Old English uncuð "unknown, uncertain, unfamiliar," from un- (1) "not" + cuð "known, well-known," past participle of cunnan "to know" (see can (v.)). Meaning "strange, crude, clumsy" is first recorded 1510s. The compound (and the thing it describes) widespread in IE languages, cf. Latin ignorantem, Old Norse ukuðr, Gothic unkunþs, Sanskrit ajnatah, Armenian ancanaut', Greek agnotos, Old Irish ingnad "unknown."