From Longman Dictionary of Contemporary Englishgauchegauche /ɡəʊʃ $ ɡoʊʃ/ adjective CONFIDENTdoing or saying wrong or impolite things, especially because you do not know the right way to behave It would be gauche to mention the price. —gaucheness noun [uncountable]
Examples from the Corpus
gauche• I never discuss money. It's gauche.• But here, high-tech hipsters are regarded as, well, gauche.• On a personal level, though, Terry's enthusiasm was sometimes gauche.• She knew she would be gauche and awkward.• But she could not move away without appearing gauche and childish.• They are painted with a rumbustious panache-or, looked at another way, with a gauche lack of sophistication.• They didn't seem prepared to say anything that might appear embarrassing or gauche later on.• Next we get the usual nonsense: wordless dialogue, optical semaphoring, gauche laughter, ear-splitting silence.Origin gauche (1700-1800) French “left, left-handed” 