faux pas UK /ˌfəʊ ˈpɑː/US /ˌfoʊ ˈpɑ/noun 1verb 1forms 3 noun1 •An embarrassing or tactless blunder.Now my dear Lady Teazle if you but once make a trifling Faux Pas you can't conceive how cautious you would grow, and how ready to humour and agree with your Husband. — 1777 verb1 •(nonstandard, rare) To commit a faux pas; to blunder. formsfaux pas'ed · faux pas'ing · faux pas's