solecism

a socially improper or unsuitable act or remark the solecism of asking one's hosts how much something in their house cost them Synonyms familiarity, faux pas, gaff, gaffe, indiscretion, improprietyRelated Words blunder, error, flub, fumble, goof, lapse, miscue, misstep, mistake, oversight, slip, slipup, stumble; discourtesy, incivility, offense (or offence); boner, howler; foul-up, muff; misapprehension, miscalculation, misconception, misjudgment, misstatement, misunderstandingNear Antonyms form, manners, mores, proprietiesAntonyms amenity, attention, civility, courtesy, formality, gesture, pleasantry