'faux pas' definitions:

Definition of 'faux pas'

From: WordNet
noun
A socially awkward or tactless act [syn: faux pas, gaffe, solecism, slip, gaucherie]

Definition of 'faux pas'

From: GCIDE
  • faux pas \faux` pas"\ (f[=o]` p[.a]"). [F. See False, and Pas.] A false step; a mistake or wrong measure; especially, a slip or misstep in social etiquette; a blunder in conduct or manners that causes embarassment; as, he committed the faux pas of mentioning John's former wife. [1913 Webster +PJC]